CVE-2021-3920: getgrav getgrav/grav-plugin-admin Cross-site Scripting
CVSS: 5.4v3.1MediumModified
Published 19-11-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-3920 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in getgrav getgrav/grav-plugin-admin. EPSS estimates a 1.37% chance of exploitation in the next 30 days, higher than 71.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.4/10
010
Medium · v3.1 (NVD)EPSS score
1.37%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 19-11-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
grav-plugin-admin is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS metrics
4 scores · 2 sources · 3 versionsMedium 5.4Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Medium 4.6Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:NSourcesAll 2 agree
- NVDNIST4.6MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
1.37%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
0.00 pp
From 1.37% on 20-09-2026
20-09-202620-10-2026
EPSS score1.37%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (huntr.dev)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Getgrav2 products
- getgrav/grav-plugin-admin≥ unspecified, < 1.10.25
- grav-plugin-admin< 1.10.25
1 vendor · 2 products
References
2 links- huntr.dev/bounties/ab564760-90c6-4e1d-80c2-852f45034cd1X Refsource CONFIRMExploitThird Party Advisory
- github.com/getgrav/grav-plugin-admin/commit/6463135bf046d8131189c163158cd5db8f7a9675X Refsource MISCPatchThird Party Advisory