VulnerabilityDeferred

CVE-2026-46725

The extension passes an attacker-controlled cookie directly to PHP's unserialize() without safely processing the input.

CRITICAL 9.2EPSS 2.63%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (2.63%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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: 9.2 CRITICALCVSS: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/M
EPSS: 2.63% probability · 85th percentile
CISA KEV: Not listed
Weakness: CWE-502
Source: f4fb688c-4412-4426-b4b8-421ecf27b14a

References

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.