CVE-2023-49493 Cross-site scripting in n/a

Medium 6.1 Published 7 Dec 2023 Updated 28 May 2025

Attackers can execute arbitrary scripts in victim browsers via a reflective XSS flaw in DedeCMS selectimages.php, potentially leading to session hijacking.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-49493?

CVE-2023-49493 is a medium-severity cross-site scripting vulnerability in Dedecms Dedecms, published on 7 Dec 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

DedeCMS v5.7.111 was discovered to contain a reflective cross-site scripting (XSS) vulnerability via the v parameter at selectimages.php.

Weakness: CWE-79

Which versions are affected by CVE-2023-49493?

It affects 1 product.

Products include Dedecms Dedecms.

How do I fix CVE-2023-49493?

No fix has been published for CVE-2023-49493 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-2023-49493 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-49493 exists.

All Dedecms Dedecms vulnerabilities

Sources

Also known as GHSA-4m92-qfq6-vx3c.