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CVE-2026-77132

TYPO3 CMS - Information Disclosure via Backend Localization Wizard

MEDIUM
5.3
CVSS Score
Published: September 8, 2026 at 09:18 AM UTC
Updated: September 8, 2026 at 07:29 PM UTC
1 product affected across 1 vendorTYPO3

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

It has been discovered that several AJAX routes used for the backend localization wizard failed to perform authorization checks. This allowed authenticated, low-privileged backend users to access information about records and content elements that fall outside of their permitted range. Exploiting this vulnerability requires a low-privileged backend user account. This issue affects TYPO3 CMS versions 10.0.0-10.4.59, 11.0.0-11.5.53, 12.0.0-12.4.48, 13.0.0-13.4.34 and 14.0.0-14.3.6.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

TYPO3· TYPO3composer
95%
10.0.0 ≤ v < 10.4.6011.0.0 ≤ v < 11.5.5412.0.0 ≤ v < 12.4.4913.0.0 ≤ v < 13.4.3514.0.0 ≤ v < 14.3.710.0.011.0.012.0.013.0.014.0.0
Affected range stops below 10.4.60, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.5.54, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.4.49, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.4.35, so it looks safe — our inference, not a vendor statement
Affected range stops below 14.3.7, so it looks safe — our inference, not a vendor statement

References (4)

Vendor Advisory
Source: cverecord
https://news.typo3.com/security/advisory/typo3-core-sa-2026-022
Patch
Source: cverecord
https://github.com/TYPO3/typo3/commit/c232421325bd18fc4d13efac0fc018a57da2dcd6
Patch
Source: cverecord
https://github.com/TYPO3/typo3/commit/35e070fc654def838fbdc45562c2c095d44ca086
Patch
Source: cverecord
https://github.com/TYPO3/typo3/commit/1c63ce806d1ccac839f4aa54ac7f48a22dd7ea64

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMTYPO3
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-862CWE-200

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