CVE-2021-23258 json
Spring SPEL Expression Language Injection
published 2021-12-02 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-10357
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
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).
Patch / fix
- Crafter Software Crafter CMS 3.1.12
Exploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Affected products
- Crafter Software Crafter CMS
Classification
- Weakness
-
- CWE-913 Improper Control of Dynamically-Managed Code Resources
References
-
docs.craftercms.org
/en/3.1/security/advisory.html#cv-2021120101
vendor-advisory
Sources
- CVE List CVE-2021-23258
- NVD CVE-2021-23258
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.