CVE-2020-6637 in the critical feed json
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
published 2020-08-24 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27785
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 17.6%
- EPSS 17.6% chance of exploitation in 30 days, percentile 97%
- public exploits
- 0
- none known, plus a Nuclei check
Summary
openSIS Community Edition version 7.3 is vulnerable to SQL injection via the USERNAME parameter of index.php.
Patch / fix
Exploit prediction
17.58% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Nuclei template OpenSIS 7.3 - SQL Injection nuclei detection template
- cinzinga.com https://cinzinga.com/CVE-2020-6637/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/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-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
github.com
/OS4ED/openSIS-Responsive-Design/commit/1127ae0bb7c3a2883febeabc6b71ad8d73510de8
patch, third-party-advisory
-
cinzinga.com
/CVE-2020-6637/
exploit, technical-description, third-party-advisory
-
opensis.com
/
product
-
sourceforge.net
/projects/opensis-ce/files/
third-party-advisory
Sources
- CVE List CVE-2020-6637
- NVD CVE-2020-6637
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.