CVE-2023-2288 Otter - Gutenberg Blocks < 2.2.6 - Author+ PHAR Deserialization
An attacker with author privileges can achieve remote code execution via PHAR deserialization in the Otter WordPress plugin.
- 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-2023-2288?
CVE-2023-2288 is a high-severity unsafe deserialization vulnerability in Unknown Otter, published on 30 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Otter WordPress plugin before 2.2.6 does not sanitize some user-controlled file paths before performing file operations on them. This leads to a PHAR deserialization vulnerability on PHP < 8.0 using the phar:// stream wrapper.
Weakness: CWE-502
Which versions are affected by CVE-2023-2288?
It affects 1 product.
Products include Themeisle Otter.
How do I fix CVE-2023-2288?
No fix has been published for CVE-2023-2288 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-2023-2288 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-2288 exists.
Sources
Also known as GHSA-7484-6482-4gq2.