CVE-2018-18903 json
Vanilla 2.6.x before 2.6.4 allows remote code execution.
published 2018-11-03 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-10613
- cvss
- 9.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 5.2%
- EPSS 5.2% chance of exploitation in 30 days, percentile 92%
- public exploits
- 0
- none known
Summary
Vanilla 2.6.x before 2.6.4 allows remote code execution.
Patch / fix
Exploit prediction
5.15% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- srcincite.io https://srcincite.io/blog/2018/10/02/old-school-pwning-with-new-school-tricks-vanilla-forums-remote-code-execution.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
srcincite.io
/blog/2018/10/02/old-school-pwning-with-new-school-tricks-vanilla-forums-remote-code-execution.html
exploit, third-party-advisory
-
open.vanillaforums.com
/discussion/36771/security-update-vanilla-2-6-4
release-notes, vendor-advisory
-
github.com
/vanilla/vanilla/releases/tag/Vanilla_2.6.4
release-notes
Sources
- CVE List CVE-2018-18903
- NVD CVE-2018-18903
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.