CVE-2022-42092
Backdrop CMS 1.22.0 has Unrestricted File Upload vulnerability via 'themes' that allows attackers to Remote Code Execution.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.09%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Backdrop CMS 1.22.0 has Unrestricted File Upload vulnerability via 'themes' that allows attackers to Remote Code Execution. Note: Third parties dispute this and argue that advanced permissions are required.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.09% probability · 82th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Affected
- backdropcms/backdrop cms
- Source
- cve@mitre.org
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://grimthereaperteam.medium.com/backdrop-cms-1-22-0-unrestricted-file-upload-themes-ad42a599561cExploit, Third Party Advisory
- https://grimthereaperteam.medium.com/backdrop-cms-1-22-0-unrestricted-file-upload-themes-ad42a599561cExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.