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VulnerabilityPublished

CVE-2026-103114: OS4ED openSIS-Classic · SQL Injection

Affects OS4ED openSIS-ClassicSource CVE Database V5

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Public exploit available · CVSS 5.3 Medium.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
Proof of concept is public or traded
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-09-30.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 30 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CISA SSVC: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by VulDB

    , 5 hours before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. CISA SSVC assessment

    proof of concept public

    , 3 hours after disclosure

  4. In Threat Radar

    record ingested

    , 26 days after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CISA SSVC, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
OS4EDopenSIS-ClassicAffected
  • 9.0 – 9.3
4 affected builds
Fixed in–

CPE configurations (1)

  • cpe:2.3:a:os4ed:opensis-classic:*:*:*:*:*:*:*:*

AI-suggested

Users should monitor the vendor's communications for updates. In the meantime, restricting access to the vulnerable endpoint and employing web application firewalls to detect and block SQL injection attempts may help reduce risk.

Description

CVE-2026-103114 is a SQL injection vulnerability in OS4ED openSIS-Classic versions 9.0 through 9.3. It affects the DBQuery_assignment function in the modules/grades/Assignments.php file within the Assignment Management Endpoint component. The vulnerability arises from improper handling of the Tables argument, allowing remote attackers to execute SQL injection attacks. Exploit code is publicly available, but no official vendor response or patch has been issued yet.

References

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