Advisory details:
github_osv / GHSA-chm7-4vch-h8vr
| Advisory ID | github_osv/GHSA-chm7-4vch-h8vr |
| Aliases |
CVE-2026-49742
|
| Summary | TYPO3 CMS has Broken Access Control in its Media Module ### Problem Backend users with file download permissions were able to download files from the fallback storage of the file abstraction layer (FAL) via the Media Module. Since the fallback storage resolves paths relative to the server's document root, this could expose sensitive files such as log files. ### Solution Update to TYPO3 versions 11.5.51 ELTS, 12.4.46 ELTS, 13.4.31 LTS, 14.3.3 LTS that fix the problem described. ### Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and to TYPO3 security team member Torben Hansen for fixing it. ### Resources * [TYPO3-CORE-SA-2026-013](https://typo3.org/security/advisory/typo3-core-sa-2026-013) |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.4 |
| Risk | 3.2 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-chm7-4vch-h8vr/GHSA-chm7-4vch-h8vr.json |
| generic_textual | HIGH |
| Reference id | Reference type | URL |
|---|---|---|
| https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2026-49742.yaml | ||
| https://github.com/TYPO3/typo3 | ||
| https://github.com/TYPO3/typo3/security/advisories/GHSA-chm7-4vch-h8vr | ||
| ad636b6183843b57c758a1e12174a75093ac93c3 | Other | https://github.com/TYPO3/typo3/commit/ad636b6183843b57c758a1e12174a75093ac93c3 |
| caa6b444d7ab1bdd1eb76a68004c8be73d98e6ae | Other | https://github.com/TYPO3/typo3/commit/caa6b444d7ab1bdd1eb76a68004c8be73d98e6ae |
| CVE-2026-49742 | https://nvd.nist.gov/vuln/detail/CVE-2026-49742 | |
| typo3-core-sa-2026-013 | Advisory | https://typo3.org/security/advisory/typo3-core-sa-2026-013 |
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:P/P:M/B:A/M:M/D:T/2026-06-09T13:26:36Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/49xxx/CVE-2026-49742.json
Source Advisory: vulnrichment/CVE-2026-49742
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]