CVE-2022-42094: backdropcms backdrop
Vulnerability summary
CVE-2022-42094 is a medium (CVSS 4.8) vulnerability in backdropcms backdrop. EPSS estimates a 2.83% chance of exploitation in the next 30 days, higher than 86.6% of scored vulnerabilities. 2 public exploits are recorded.
Not severe (CVSS 4.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 22-11-2022PublishedVulnerability first disclosed.
- 29-04-2025Last modifiedVulnerability information updated.
Description
Backdrop CMS version 1.23.0 was discovered to contain a stored cross-site scripting (XSS) vulnerability via the 'Card' content.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
2.83%
Chance of exploitation in the next 30 days
Percentile
87%
Versus all other CVEs
30-day change
Increase +0.15 pp
From 2.68% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
2 foundCve 2022 42094
Maturity: poc
Exploit Reference (grimthereaperteam.medium.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, administrative account, user interaction (CVSS vector). Other conditions: not stated in public data.
Backdropcms1 product
- backdrop1.23.0
1 vendor · 1 product
References
4 links- backdropcms.orgVendor Advisory
- grimthereaperteam.medium.com/cve-2022-42094-backdrop-xss-at-cards-84266b5250f1ExploitThird Party Advisory