Authenticated users with Administrator or Developer roles may execute OS commands by Groovy Script which uses Groovy lib to render a webpage. The groovy script does not have security restrictions, which will cause attackers to execute arbitrary commands remotely(RCE).
CVE-2021-23259
MEDIUMNVD 4.24.2—
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 4.2 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 40% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
4.2
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 4.2Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.2
- EG Score
- 4.2(medium)
- EPSS
- 48.9%
- KEV
- Not listed
Published
December 2, 2021
Last Modified
November 21, 2024
References (2)
- security@craftersoftwarehttps://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120102
- af854a3a-2127-422b-91ae-364da2661108https://docs.craftercms.org/en/3.1/security/advisory.html#cv-2021120102
Frequently asked(5)
What is CVE-2021-23259?
CVE-2021-23259 is a medium vulnerability published on December 2, 2021. Authenticated users with Administrator or Developer roles may execute OS commands by Groovy Script which uses Groovy lib to render a webpage. The groovy script does not have security restrictions, which will cause attackers to execute arbitrary commands remotely(RCE).
When was CVE-2021-23259 disclosed?
CVE-2021-23259 was first published in the National Vulnerability Database on December 2, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-23259 actively exploited?
CVE-2021-23259 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 48.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-23259?
CVE-2021-23259 has a CVSS v3 base score of 4.2 (NVD).
How do I remediate CVE-2021-23259?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23259, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-23259
Is Your Infrastructure Affected by CVE-2021-23259?
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