CVE-2020-21356 json
An information disclosure vulnerability in upload.php of PopojiCMS 1.2 leads to physical path disclosure of the host when 'name = "file" is…
published 2021-08-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-14128
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
An information disclosure vulnerability in upload.php of PopojiCMS 1.2 leads to physical path disclosure of the host when 'name = "file" is deleted during file uploads.
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/PopojiCMS/PopojiCMS/issues/23 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-668 Exposure of Resource to Wrong Sphere
References
-
github.com
/PopojiCMS/PopojiCMS/issues/23
exploit, issue-tracking, third-party-advisory
Sources
- CVE List CVE-2020-21356
- NVD CVE-2020-21356
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.