CVE-2021-23258

CVE-2021-23258 is a medium-severity vulnerability in Craftercms Crafter Cms with a CVSS 3.x base score of 4.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-913.

Key facts

Description

Authenticated users with Administrator or Developer roles may execute OS commands by SPEL Expression in Spring beans. SPEL Expression does not have security restrictions, which will cause attackers to execute arbitrary commands remotely (RCE).

Frequently asked questions

What is CVE-2021-23258?
Authenticated users with Administrator or Developer roles may execute OS commands by SPEL Expression in Spring beans. SPEL Expression does not have security restrictions, which will cause attackers to execute arbitrary commands remotely (RCE).
How severe is CVE-2021-23258?
CVE-2021-23258 has a CVSS 3.x base score of 4.2, rated medium severity. It is exploitable over network with high attack complexity, requires high privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-23258 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-23258?
CVE-2021-23258 affects Craftercms Crafter Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-23258?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-23258 published?
CVE-2021-23258 was published on 2021-12-02 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Craftercms Crafter Cms

All CVEs affecting Craftercms Crafter Cms →

Other CWE-913 vulnerabilities

Browse all CWE-913 vulnerabilities →