GHSA-FH48-F69W-7VMP

Vulnerability from github – Published: 2026-03-25 19:56 – Updated: 2026-03-25 19:56
VLAI?
Summary
MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation
Details

Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript.

Impact

Cross-site scripting (XSS).

Patches

80990f43153167c73f11eb4b2bc7108d0c3d6b46

Workarounds

  • Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9
  • Manually edit language files to remove the sprintf placeholder %1$s from $s_tag_delete_message string, for example with sed -r -i '/tag_delete_message/s/.%1\$s.//' -- lang/

Credits

MantisBT hanks Vishal Shukla for discovering and responsibly reporting the issue.

Severity ?
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "mantisbt/mantisbt"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.28.0"
            },
            {
              "fixed": "2.28.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.28.0"
      ]
    }
  ],
  "aliases": [
    "CVE-2026-33517"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-25T19:56:00Z",
    "nvd_published_at": "2026-03-23T20:16:27Z",
    "severity": "HIGH"
  },
  "details": "Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript.\n\n### Impact\nCross-site scripting (XSS).\n\n### Patches\n80990f43153167c73f11eb4b2bc7108d0c3d6b46\n\n### Workarounds\n* Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9\n* Manually edit language files to remove the sprintf placeholder `%1$s` from *$s_tag_delete_message*  string, for example with `sed -r -i \u0027/tag_delete_message/s/.%1\\$s.//\u0027 -- lang/`\n\n### Credits\nMantisBT hanks Vishal Shukla for discovering and responsibly reporting the issue.",
  "id": "GHSA-fh48-f69w-7vmp",
  "modified": "2026-03-25T19:56:00Z",
  "published": "2026-03-25T19:56:00Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mantisbt/mantisbt/security/advisories/GHSA-fh48-f69w-7vmp"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33517"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mantisbt/mantisbt/commit/80990f43153167c73f11eb4b2bc7108d0c3d6b46"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mantisbt/mantisbt/commit/d6890320752ecf37bd74d11fe14fe7dc12335be9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mantisbt/mantisbt"
    },
    {
      "type": "WEB",
      "url": "https://mantisbt.org/bugs/view.php?id=36971"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation"
}


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  • 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.
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  • 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.



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