CVE-2025-11346 ILIAS Base64 Decoding unserialize deserialization
Remote attackers can exploit unsafe deserialization in ILIAS Base64 decoding to execute arbitrary code, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-11346?
CVE-2025-11346 is a medium-severity unsafe deserialization vulnerability in ILIAS, published on 6 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been found in ILIAS up to 8.23/9.13/10.1. This affects the function unserialize of the component Base64 Decoding Handler. Such manipulation of the argument f_settings leads to deserialization. It is possible to launch the attack remotely. Upgrading to version 8.24, 9.14 and 10.2 is able to mitigate this issue. It is advisable to upgrade the affected component.
Which versions are affected by CVE-2025-11346?
It affects 1 product.
Products include Ilias Ilias.
How do I fix CVE-2025-11346?
No fix has been published for CVE-2025-11346 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-11346 being exploited?
There is no known exploitation of CVE-2025-11346 in the wild and no public exploit code.
Other vulnerabilities in ILIAS
Sources
Also known as GHSA-p8xp-jr72-jpj4.