CVE-2026-10581 DedeCMS download.php base64_decode server-side request forgery
Remote attackers can exploit a base64 decoding flaw in DedeCMS download.php to perform server-side request forgery, potentially accessing internal resources.
- 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-2026-10581?
CVE-2026-10581 is a medium-severity server-side request forgery vulnerability in DedeCMS, published on 2 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A flaw has been found in DedeCMS 5.7.88. Affected by this vulnerability is the function base64_decode of the file /plus/download.php?open=1. This manipulation of the argument Link causes server-side request forgery. Remote exploitation of the attack is possible. The exploit has been published and may be used.
Weakness: CWE-918
Which versions are affected by CVE-2026-10581?
How do I fix CVE-2026-10581?
No fix has been published for CVE-2026-10581 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-10581 being exploited?
There is no known exploitation of CVE-2026-10581 in the wild and no public exploit code.
Sources
Also known as GHSA-7vqp-qmqp-chh2.