Advisory details:
github_osv / GHSA-p6fr-rxq7-xcg8
| Advisory ID | github_osv/GHSA-p6fr-rxq7-xcg8 |
| Aliases |
CVE-2026-44657
|
| Summary | MantisBT Vulnerable to Stored XSS in File Download Using *show_inline=1* parameter and a valid *file_show_inline_token* CSRF token on file_download.php, an attacker can execute code by uploading a crafted XHTML attachment referencing a JavaScript attachment. ### Impact Cross-site scripting ### Patches - 26647b2e68ba30b9d7987d4e03d7a16416684bc2 ### Workarounds None ### Credits Thanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.8 |
| Risk | 3.4 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.5 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-p6fr-rxq7-xcg8/GHSA-p6fr-rxq7-xcg8.json |
| generic_textual | HIGH |
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/2026-05-29T14:49:46Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/44xxx/CVE-2026-44657.json
Source Advisory: vulnrichment/CVE-2026-44657
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'total'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]