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CVE-2022-23944

81
FAUCET Score

CVE-2022-23944 is a critical authentication bypass vulnerability affecting Apache ShenYu versions 2.4.0 and 2.4.1, allowing unauthenticated users to access the /plugin API. With a CVSS score of 9.1 (CRITICAL), this flaw is easily exploitable over the network with no user interaction, potentially leading to high impact on confidentiality and integrity. While not listed on the KEV catalog and lacking Metasploit or ExploitDB modules, Nuclei templates exist for detection, indicating readily available exploit code. Despite its high severity and EPSS score, there is minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.0CPE matchmatch criteria
cpe:2.3:a:apache:shenyu:2.4.0:*:*:*:*:*:*:*
2.4.1CPE matchmatch criteria
cpe:2.3:a:apache:shenyu:2.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
79.01%
Probability of exploitation in next 30 days
EPSS Percentile
99.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Nuclei: CVE-2022-23944 · Jan 27, 2022
This CVE's current EPSS score of 0.7901 is in the 98th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 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 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.shenyu:shenyu-commonFixed in: 2.4.2

Vendor Advisories (1)

mavenGHSA-6v39-p2xq-g5c3critical

Missing authentication in ShenYu

Jan 28, 2022

References

lists.apache.org / thread/dbrjnnlrf80dr0f92k5r2ysfvf1kr67y
Mailing ListVendor Advisory
openwall.com / lists/oss-security/2022/01/25/15
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2022/01/25/5
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2022/01/26/2
Mailing ListPatchThird Party Advisory