CVE-2026-103522 CVE-2026-103522
Administrators can upload malicious PHP files disguised as images to achieve remote code execution due to insufficient server-side validation.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-103522?
CVE-2026-103522 is a high-severity vulnerability in Thelia, published on 12 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
In Thelia v2.6.0, the store banner upload feature performs insufficient filetype validation that relies exclusively on client‑supplied MIME types. An attacker with administrative access can upload a PHP file disguised as an image to bypass validation and achieve remote code execution on the underlying server.
Weakness: CWE-434
Which versions are affected by CVE-2026-103522?
How do I fix CVE-2026-103522?
No fix has been published for CVE-2026-103522 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-103522 being exploited?
There is no known exploitation of CVE-2026-103522 in the wild and no public exploit code.
Sources
Also known as GHSA-fr55-rfpm-h943.