CVE-2021-27341
OpenSIS Community Edition version <= 7.6 is affected by a local file inclusion vulnerability in DownloadWindow.php via the "filename" parameter.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
OpenSIS Community Edition version <= 7.6 is affected by a local file inclusion vulnerability in DownloadWindow.php via the "filename" parameter.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.05% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- os4ed/opensis
- Source
- cve@mitre.org
EPSS 2.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5baPatch, Third Party Advisory
- https://github.com/OS4ED/openSIS-Classic/issues/158Issue Tracking, Third Party Advisory
- https://github.com/OS4ED/openSIS-Classic/releasesRelease Notes, Third Party Advisory
- https://github.com/OS4ED/openSIS-Classic/commit/f78407d5291c686c3f416073dcb9143f3a3d5489#diff-24b751f2072f058259d033016938101f9fa29884ebcc09ce7eb88def3421e5baPatch, Third Party Advisory
- https://github.com/OS4ED/openSIS-Classic/issues/158Issue Tracking, Third Party Advisory
- https://github.com/OS4ED/openSIS-Classic/releasesRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.