Advisory details:
github_osv / GHSA-fh48-f69w-7vmp
| Advisory ID | github_osv/GHSA-fh48-f69w-7vmp |
| Aliases |
CVE-2026-33517
|
| Summary | MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 7.7 |
| Risk | 3.9 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 8.6 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-fh48-f69w-7vmp/GHSA-fh48-f69w-7vmp.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/mantisbt/mantisbt | ||
| https://mantisbt.org/bugs/view.php?id=36971 | ||
| 80990f43153167c73f11eb4b2bc7108d0c3d6b46 | Other | https://github.com/mantisbt/mantisbt/commit/80990f43153167c73f11eb4b2bc7108d0c3d6b46 |
| CVE-2026-33517 | https://nvd.nist.gov/vuln/detail/CVE-2026-33517 | |
| d6890320752ecf37bd74d11fe14fe7dc12335be9 | Other | https://github.com/mantisbt/mantisbt/commit/d6890320752ecf37bd74d11fe14fe7dc12335be9 |
| GHSA-fh48-f69w-7vmp | Other | https://github.com/mantisbt/mantisbt/security/advisories/GHSA-fh48-f69w-7vmp |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:T/P:M/B:A/M:M/D:T/2026-03-24T14:12:05Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/33xxx/CVE-2026-33517.json
Source Advisory: vulnrichment/CVE-2026-33517
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]