Vulnerability-Lookup

GHSA-PGC8-G7Q5-FQ5M

Vulnerability from github – Published: 2026-02-01 15:32 – Updated: 2026-02-01 15:32

Details

Simple CMS 2.1 contains a persistent cross-site scripting vulnerability in user input parameters that allows remote attackers to inject malicious script code. Attackers can exploit the newUser and editUser modules to inject persistent scripts that execute on user list preview, potentially leading to session hijacking and application manipulation.

Severity

6.4 (Medium)


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

5.1 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47917"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-01T13:15:56Z",
    "severity": "MODERATE"
  },
  "details": "Simple CMS 2.1 contains a persistent cross-site scripting vulnerability in user input parameters that allows remote attackers to inject malicious script code. Attackers can exploit the newUser and editUser modules to inject persistent scripts that execute on user list preview, potentially leading to session hijacking and application manipulation.",
  "id": "GHSA-pgc8-g7q5-fq5m",
  "modified": "2026-02-01T15:32:31Z",
  "published": "2026-02-01T15:32:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47917"
    },
    {
      "type": "WEB",
      "url": "https://simplephpscripts.com/simple-cms-php"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/simple-cms-persistent-cross-site-scripting-via-user-input-parameters"
    },
    {
      "type": "WEB",
      "url": "https://www.vulnerability-lab.com/get_content.php?id=2302"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/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:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2021-47917 (GCVE-0-2021-47917)

Vulnerability from cvelistv5 – Published: 2026-02-01 12:15 – Updated: 2026-03-05 01:29

Title

Simple CMS 2.1 Persistent Cross-Site Scripting via User Input Parameters

Summary

Severity

5.1 (Medium)


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

6.4 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck

References

3 references

URL	Tags
https://www.vulnerability-lab.com/get_content.php…	exploit
https://simplephpscripts.com/simple-cms-php	product
https://www.vulncheck.com/advisories/simple-cms-p…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Simplephpscripts	Simple CMS	Affected: 2.1

Date Public

2021-10-18 00:00

Credits

Vulnerability-Lab [Research Team]

Show details on NVD website

JSON

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  "containers": {
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        "metrics": [
          {
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                "id": "CVE-2021-47917",
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                  },
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                  },
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                  }
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                "timestamp": "2026-02-02T18:05:46.031250Z",
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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.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-PGC8-G7Q5-FQ5M

CVE-2021-47917 (GCVE-0-2021-47917)

Tags

Sightings

Nomenclature