Vulnerability-Lookup

GHSA-35X7-R658-WX7F

Vulnerability from github – Published: 2026-02-26 09:30 – Updated: 2026-03-12 15:30

Details

This vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout of the WebClient and WebScheduler web apps.

Severity

6.1 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/RE:M/U:Clear

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-1698"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-644"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-26T08:16:19Z",
    "severity": "MODERATE"
  },
  "details": "A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior.\n\nThis vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout\nof the WebClient and WebScheduler web apps.",
  "id": "GHSA-35x7-r658-wx7f",
  "modified": "2026-03-12T15:30:23Z",
  "published": "2026-02-26T09:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1698"
    },
    {
      "type": "WEB",
      "url": "https://www.pcvue.com/security/#SB2026-2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:X/RE:M/U:Clear",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-1698 (GCVE-0-2026-1698)

Vulnerability from cvelistv5 – Published: 2026-02-26 07:58 – Updated: 2026-03-26 08:25

Title

HTTP Host header vulnerability in WebClient and WebScheduler web apps

Summary

A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior. This vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout of the WebClient and WebScheduler web apps.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/RE:M/U:Clear

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CNA · arcinfo (v2.0.3)

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 14:30 UTC

CWE

CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax

Assigner

arcinfo icscert root

References

1 reference

URL	Tags
https://www.pcvue.com/security/#SB2026-2	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
arcinfo	PcVue	Affected: 16.0.0 , ≤ 16.3.3 (cpe) Affected: 15.0.0 , ≤ 15.2.13 (cpe) cpe:2.3:a:arcinfo:pcvue:::::::: cpe:2.3:a:arcinfo:pcvue::::::::

Date Public

2026-02-25 23:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1698",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-02-26T14:30:06.903784Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T14:30:21.442Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "modules": [
            "WebVue",
            "WebScheduler"
          ],
          "product": "PcVue",
          "vendor": "arcinfo",
          "versions": [
            {
              "lessThanOrEqual": "16.3.3",
              "status": "affected",
              "version": "16.0.0",
              "versionType": "cpe"
            },
            {
              "lessThanOrEqual": "15.2.13",
              "status": "affected",
              "version": "15.0.0",
              "versionType": "cpe"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:arcinfo:pcvue:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "16.3.3",
                  "versionStartIncluding": "16.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:arcinfo:pcvue:*:*:*:*:*:*:*:*",
                  "versionEndIncluding": "15.2.13",
                  "versionStartIncluding": "15.0.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "datePublic": "2026-02-25T23:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior.\u003cbr\u003e\u003cbr\u003eThis vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout\u003cbr\u003eof the WebClient and WebScheduler web apps.\u003cbr\u003e"
            }
          ],
          "value": "A HTTP Host header attack vulnerability affects WebClient and the WebScheduler web apps of PcVue in version 15.0.0 through 16.3.3 included, allowing a remote attacker to inject harmful payloads that manipulate server-side behavior.\n\nThis vulnerability only affects the endpoints /Authentication/ExternalLogin, /Authentication/AuthorizationCodeCallback and /Authentication/Logout\nof the WebClient and WebScheduler web apps."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "No POC available."
            }
          ],
          "value": "No POC available."
        },
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Not known to be exploited"
            }
          ],
          "value": "Not known to be exploited"
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "YES",
            "Recovery": "USER",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "CLEAR",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "PASSIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:L/SI:L/SA:N/AU:Y/R:U/RE:M/U:Clear",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "MODERATE"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "other": {
            "content": {
              "options": [
                {
                  "Exploitation": "none"
                },
                {
                  "Automatable": "yes"
                },
                {
                  "Technical Impact": "partial"
                }
              ],
              "role": "CNA",
              "version": "2.0.3"
            },
            "type": "ssvc"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-644",
              "description": "CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-26T08:25:09.394Z",
        "orgId": "87c8e6ad-f0f5-4ca8-89e2-89f26d6ed932",
        "shortName": "arcinfo"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://www.pcvue.com/security/#SB2026-2"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cb\u003eHarden the configuration\u003c/b\u003e\u003cbr\u003e\u003cu\u003eWho should apply this recommendation:\u003c/u\u003e All users\u003cbr\u003e\n\nTo reduce the risk of exploitation, ARC Informatique strongly recommends implementing the following defensive measures:\n\n\u003cul\u003e\u003cli\u003eMinimize network exposure for all control system devices and/or systems, and ensure they are not accessible from insecure networks.\u003c/li\u003e\u003cli\u003eLocate control system networks and remote devices behind firewalls and isolate them from business networks.\u003c/li\u003e\u003cli\u003eWhen remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003e\u003cb\u003eUninstall the Web Server\u003c/b\u003e \u003cbr\u003e\u003cu\u003eWho should apply this recommendation:\u003c/u\u003e All users \u003cb\u003enot \u003c/b\u003eusing the affected component \u003cbr\u003e\u003cbr\u003eIf your system does not require the use of the Web \u0026amp; Mobile features, you should make sure not to install them. If your system requires the use of the Web \u0026amp; Mobile features, they should be installed only on the Web Server.\u003cbr\u003eSee the product help related to the installation for more information.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eUpdate the Web Deployment Console (WDC) and re deploy the Web Server\u003c/b\u003e\u003cbr\u003e\u003cu\u003eWho should apply this recommendation:\u003c/u\u003e \n\nAll users running affected components.\n\n\u003cbr\u003e\u003cbr\u003eInstall a patched release of the Web Deployment Console (WDC) on the IIS Web server and use it to re-deploy the Web Site. Some settings might need to be updated if third-party web apps or services depend on the OAuth ROPC flow.\u003cbr\u003e\u003cbr\u003eIn a patched release of the WDC, new settings are available for each authorized Client to enable or disable:\u003cbr\u003e\u003cul\u003e\u003cli\u003eThe Authorization Code flow\u003c/li\u003e\u003cli\u003eThe Authorization Code flow with PKCE\u003c/li\u003e\u003cli\u003eThe Resource Owner Password Credentials (ROPC) flow\u003c/li\u003e\u003c/ul\u003eBy default, all the OAuth flows are now disabled for third-party web apps and need to be manually enabled before deployment if required.\u003cbr\u003e\u003cbr\u003eTo verify that the patch is applied correctly, you must check that:\u003cbr\u003e\u003cul\u003e\u003cli\u003eThe \u003ci\u003eFile version\u003c/i\u003e property of the file \u003ci\u003e./bin/Modules/WebDeployment/WebDeploymentConsole.exe\u003c/i\u003e matches the deployed release or later, and ensure that any earlier release is no longer used;\u003c/li\u003e\u003cli\u003eWeb Sites have been redeployed;\u003c/li\u003e\u003cli\u003eOAuth flow are correctly set for each authorized Client.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003e\n\n\u003cb\u003eAvailable patches:\u003c/b\u003e\u003cbr\u003ePatch provided in:\u003cbr\u003e\u003cul\u003e\u003cli\u003ePcVue 16.3.4 (16.3.4902.3112)\u003c/li\u003e\u003cli\u003ePcVue 15.2.14 (15.2.14900.37147)\u003c/li\u003e\u003c/ul\u003e"
            }
          ],
          "value": "Harden the configuration\nWho should apply this recommendation: All users\n\n\nTo reduce the risk of exploitation, ARC Informatique strongly recommends implementing the following defensive measures:\n\n  *  Minimize network exposure for all control system devices and/or systems, and ensure they are not accessible from insecure networks.\n  *  Locate control system networks and remote devices behind firewalls and isolate them from business networks.\n  *  When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as its connected devices.\n\n\n\nUninstall the Web Server \nWho should apply this recommendation: All users not using the affected component \n\nIf your system does not require the use of the Web \u0026 Mobile features, you should make sure not to install them. If your system requires the use of the Web \u0026 Mobile features, they should be installed only on the Web Server.\nSee the product help related to the installation for more information.\n\n\nUpdate the Web Deployment Console (WDC) and re deploy the Web Server\nWho should apply this recommendation: \n\nAll users running affected components.\n\n\n\nInstall a patched release of the Web Deployment Console (WDC) on the IIS Web server and use it to re-deploy the Web Site. Some settings might need to be updated if third-party web apps or services depend on the OAuth ROPC flow.\n\nIn a patched release of the WDC, new settings are available for each authorized Client to enable or disable:\n  *  The Authorization Code flow\n  *  The Authorization Code flow with PKCE\n  *  The Resource Owner Password Credentials (ROPC) flow\n\n\nBy default, all the OAuth flows are now disabled for third-party web apps and need to be manually enabled before deployment if required.\n\nTo verify that the patch is applied correctly, you must check that:\n  *  The File version property of the file ./bin/Modules/WebDeployment/WebDeploymentConsole.exe matches the deployed release or later, and ensure that any earlier release is no longer used;\n  *  Web Sites have been redeployed;\n  *  OAuth flow are correctly set for each authorized Client.\n\n\n\n\n\nAvailable patches:\nPatch provided in:\n  *  PcVue 16.3.4 (16.3.4902.3112)\n  *  PcVue 15.2.14 (15.2.14900.37147)"
        }
      ],
      "source": {
        "advisory": "SB2026-2",
        "discovery": "EXTERNAL"
      },
      "title": "HTTP Host header vulnerability in WebClient and WebScheduler web apps",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "87c8e6ad-f0f5-4ca8-89e2-89f26d6ed932",
    "assignerShortName": "arcinfo",
    "cveId": "CVE-2026-1698",
    "datePublished": "2026-02-26T07:58:00.626Z",
    "dateReserved": "2026-01-30T08:38:11.209Z",
    "dateUpdated": "2026-03-26T08:25:09.394Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-35X7-R658-WX7F

CVE-2026-1698 (GCVE-0-2026-1698)

Tags

Sightings

Nomenclature

Related by attack behaviour