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CVE-2021-28490

28
FAUCET Score

CVE-2021-28490 describes a Cross-Site Request Forgery (CSRF) vulnerability in OWASP CSRFGuard through version 3.1.0, where an attacker can retrieve the CSRF cookie using only a session token. This vulnerability carries a high CVSS score of 8.8, indicating a critical risk due to its network-based attack vector, low attack complexity, and high potential for confidentiality, integrity, and availability impacts. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code in common repositories like Metasploit or ExploitDB, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.0CPE matchmatch criteria
cpe:2.3:a:owasp:csrfguard:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:owasp:csrfguard:4.0:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
40.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 42nd percentile among its peer group of 14,848 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.owasp:csrfguardFixed in: 4.0.0

Vendor Advisories (1)

mavenGHSA-jx66-5ww9-m6q4high

Cross-Site Request Forgery in OWASP CSRFGuard

May 24, 2022

References

github.com / reidmefirst/vuln-disclosure/blob/main/2021-01.txt
Third Party Advisory
owasp.org / www-project-csrfguard
Product