CVE-2018-20129 json
An issue was discovered in DedeCMS V5.7 SP2.
published 2018-12-13 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12699
- cvss
- 8.8
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.2%
- EPSS 8.2% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
An issue was discovered in DedeCMS V5.7 SP2. uploads/include/dialog/select_images_post.php allows remote attackers to upload and execute arbitrary PHP code via a double extension and a modified ".php" substring, in conjunction with the image/jpeg content type, as demonstrated by the filename=1.jpg.p*hp value.
Exploit prediction
8.23% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- iwantacve.cn http://www.iwantacve.cn/index.php/archives/88/ 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 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-94 Improper Control of Generation of Code
References
-
iwantacve.cn
/index.php/archives/88/
exploit, third-party-advisory
Sources
- CVE List CVE-2018-20129
- NVD CVE-2018-20129
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.