CVE-2026-26682 json
An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via the PluginController.java component
published 2026-02-26 8 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-8862
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 11%
- public exploits
- 0
- none known
Summary
An issue in fastCMS before v.0.1.6 allows a local attacker to execute arbitrary code via the PluginController.java component
Patch / fix
- xjd2020 fastcms 0.1.6
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 8 mo ago
Exploit prediction
0.21% chance of exploitation in the next 30 days, higher than 11% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/sorzs/test/tree/main/fastcms-rce referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
github.com
/sorzs/test/tree/main/fastcms-rce
exploit, third-party-advisory
-
gist.github.com
/sorzs/e3913b814e2e5548aa66de6c25b0510a
third-party-advisory
Sources
- CVE List CVE-2026-26682
- NVD CVE-2026-26682
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