CVE-2021-3904: getgrav getgrav/grav Cross-site Scripting
CVSS: 6.3v3.0MediumModified
Published 27-10-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-3904 is a medium (CVSS 6.3) Cross-site Scripting vulnerability in getgrav getgrav/grav. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 47.3% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.3/10
010
Medium · v3.0 (CVE.org)EPSS score
0.59%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 27-10-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
grav 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 6.3Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:LSourcesAll 2 agree
- NVDNIST6.3MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
47%
Versus all other CVEs
30-day change
0.00 pp
From 0.59% on 20-09-2026
20-09-202620-10-2026
EPSS score0.59%
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≥ unspecified, < 1.7.24
- grav< 1.7.24
1 vendor · 2 products
References
2 links- huntr.dev/bounties/b1182515-d911-4da9-b4f7-b4c341a62a8dX Refsource CONFIRMExploitIssue TrackingPatchThird Party Advisory
- github.com/getgrav/grav/commit/afc69a3229bb6fe120b2c1ea27bc6f196ed7284dX Refsource MISCPatchThird Party Advisory