CVE-2026-31354 Feehi CMS has authenticated stored cross-site scripting (XSS) vulnerabilities via the Permissions module
Authenticated attackers can inject malicious scripts into Feehi CMS Permissions module fields, potentially leading to session hijacking or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-31354?
CVE-2026-31354 is a medium-severity cross-site scripting vulnerability in n/a, published on 6 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
Multiple authenticated stored cross-site scripting (XSS) vulnerabilities in the Permissions module of Feehi CMS v2.1.1 allows attackers to execute arbitrary web scripts or HTML via injecting a crafted payload into the Group, Category or Description parameters.
Weakness: CWE-79
Which versions are affected by CVE-2026-31354?
2 open source packages ship an affected version, including feehi/cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
feehi/cms Packagist | All versions | None |
feehi/cms Packagist | All versions | None |
Products include Feehi Feehi Cms.
How do I fix CVE-2026-31354?
No fix has been published for CVE-2026-31354 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-31354 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-31354 exists.
Other vulnerabilities in n/a
- CVE-2021-30108 Server-Side Request Forgery in Feehi CMS
- CVE-2022-34971 Feehi CMS arbitrary code execution via crafted PHP file
- CVE-2020-22643 Feehi CMS arbitrary file upload vulnerability
- CVE-2022-38796 Feehi CMS host header injection vulnerability
- CVE-2020-21146 Feehi CMS vulnerable to Cross-site Scripting in Username Field
Sources
Also known as GHSA-xqm9-6qmm-xrqh.