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Vulnerability record · CVE-2026-46725 · published 19 May 2026

CVE-2026-46725: Deserialization of untrusted data vulnerability

The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with "Persistent Mode: Static" in the plugin settings.

9.2 CVSS 4.0 Critical EPSS 1.9% · top 21.6% CWE-502 · Deserialization of untrusted data Deferred
9.2CVSS 4.0 base score
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server. Exploitation requires the content element to be configured with "Persistent Mode: Static" in the plugin settings.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://typo3.org/security/advisory/typo3-ext-sa-2026-013

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Source: NIST National Vulnerability Database (record CVE-2026-46725), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.