CVE-2018-18426 json
s-cms 3.0 allows remote attackers to execute arbitrary PHP code by placing this code in a crafted User-agent Disallow value in the robots.p…
published 2018-10-17 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10154
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.4%
- EPSS 2.4% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
s-cms 3.0 allows remote attackers to execute arbitrary PHP code by placing this code in a crafted User-agent Disallow value in the robots.php txt parameter.
Exploit prediction
2.45% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- ttk7.cn http://www.ttk7.cn/post-93.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 8.8 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 9.0 | AV:N/AC:L/Au:S/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
ttk7.cn
/post-93.html
exploit, third-party-advisory
-
s-cms.cn
/update.html
vendor-advisory
Sources
- CVE List CVE-2018-18426
- NVD CVE-2018-18426
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.