Vulnerability · Published Dec 7, 2021 · Assigned by mitre
CVE-2021-42567
Medium 6.1
In plain English
A medium-severity security flaw in the org.apereo.cas:cas-server-core-web package (Maven). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 8.2% (higher than 95% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei. Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)8.2%top 5.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack tooling1Nuclei
Official description
Apereo CAS through 6.4.1 allows XSS via POST requests sent to the REST API endpoints.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.apereo.cas:cas-server-core-web | 6.4.2 | GHSA-gfhx-jjwq-63gv |
Affected products (as reported)
References
- https://github.com/apereo/cas/releases x_refsource_MISC
- https://apereo.github.io/2021/10/18/restvuln/ x_refsource_CONFIRM