Vulnerability-Lookup

GHSA-QVHH-2F8H-HQGP

Vulnerability from github – Published: 2026-04-23 00:31 – Updated: 2026-05-26 15:32

Details

WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the url schema field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.

Severity

8.5 (High)


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

6.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

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  "affected": [],
  "aliases": [
    "CVE-2026-41455"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-918"
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    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T22:16:32Z",
    "severity": "MODERATE"
  },
  "details": "WeKan before\u00a08.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the url schema field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.",
  "id": "GHSA-qvhh-2f8h-hqgp",
  "modified": "2026-05-26T15:32:07Z",
  "published": "2026-04-23T00:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41455"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wekan/wekan/commit/2cd702f48df2b8aef0e7381685f8e089986a18a4"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wekan/wekan/releases/tag/v8.35"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/wekan-ssrf-via-webhook-url"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-41455 (GCVE-0-2026-41455)

Vulnerability from cvelistv5 – Published: 2026-04-22 21:09 – Updated: 2026-07-14 20:00

Title

WeKan < 8.35 SSRF via Webhook URL

Summary

WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the URL scheme field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.

Severity

6.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:L/SA:N

8.5 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-23 13:36 UTC

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

VulnCheck mitre root Scorecard

References

3 references

URL	Tags
https://github.com/wekan/wekan/releases/tag/v8.35	release-notes
https://github.com/wekan/wekan/commit/2cd702f48df…	patch
https://www.vulncheck.com/advisories/wekan-ssrf-v…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
wekan	wekan	Affected: 0 , < 8.35.0 (semver) Unaffected: 2cd702f48df2b8aef0e7381685f8e089986a18a4 (git) cpe:2.3:a:wekan_project:wekan::::::::

Credits

Rodolphe GHIO xet7

Show details on NVD website

JSON

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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.

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.

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GHSA-QVHH-2F8H-HQGP

CVE-2026-41455 (GCVE-0-2026-41455)

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