SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-40651

OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose arbitrary file from the server's filesystem as long as the application has access to the file.

EXPLOITMEDIUM 6.5EPSS 17.9%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 17.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

OS4Ed OpenSIS Community 8.0 is vulnerable to a local file inclusion vulnerability in Modules.php (modname parameter), which can disclose arbitrary file from the server's filesystem as long as the application has access to the file.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS
17.95% probability · 97th percentile
Public exploits
1 in Exploit-DB · first 3 September 2021
CISA KEV
Not listed
Weakness
CWE-22
Affected
os4ed/opensis
Source
cve@mitre.org
EPSS trend
0%10%20%3 November 2026: 17.95%3 November 20263 November 2026

EPSS 17.9% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-50259source ↗OpenSIS 8.0 'modname' - Directory Traversalphp · Eric Salariowebapps3 September 2021no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.