High severity8.8NVD Advisory· Published Feb 3, 2022· Updated Jun 17, 2026
CVE-2021-45268
CVE-2021-45268
Description
A Cross Site Request Forgery (CSRF) vulnerability exists in Backdrop CMS 1.20, which allows Remote Attackers to gain Remote Code Execution (RCE) on the Hosting Webserver via uploading a maliciously add-on with crafted PHP file. NOTE: the vendor disputes this because the attack requires a session cookie of a high-privileged authenticated user who is entitled to install arbitrary add-ons
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Affected products
3- Backdrop CMS/Backdrop CMSdescription
- cpe:2.3:a:backdropcms:backdrop:1.20.0:*:*:*:*:*:*:*
- Range: <1.20
Patches
Vulnerability mechanics
References
1- www.exploit-db.com/exploits/50323nvdThird Party AdvisoryVDB Entry
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