CVE-2026-103113: OS4ED openSIS-Classic · SQL Injection
Affects OS4ED openSIS-ClassicSource CVE Database V5
Public exploit available · CVSS 5.1 Medium.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% 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:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 30 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CISA SSVC: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE ID reserved
by VulDB
, 5 hours before disclosure
CVE published
on cve.org
, t = 0
CISA SSVC assessment
proof of concept public
, 6 hours after disclosure
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
| Product | Affected | Fixed in |
|---|---|---|
| OS4EDopenSIS-Classic | Affected
| Fixed in– |
CPE configurations (1)
cpe:2.3:a:os4ed:opensis-classic:*:*:*:*:*:*:*:*
AI-suggested
Users should apply strict access controls to limit high privilege accounts and monitor for suspicious activity involving the students argument. Remediation status is unconfirmed; check the vendor advisory for updates.
Description
CVE-2026-103113 is a medium severity SQL injection vulnerability in OS4ED openSIS-Classic versions 9.0 through 9.3. The flaw exists in the save action function of the modules/students/Student.php file within the General Information Tab component. An attacker with high privileges can remotely manipulate the students argument to perform SQL injection. The vulnerability has been publicly disclosed with exploit details available, but the vendor has not yet responded or issued a patch.
References
- vuldb.com/vuln/411869 (opens in a new tab)
- vuldb.com/vuln/411869/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-103113 (opens in a new tab)
- vuldb.com/submit/954959 (opens in a new tab)
- github.com/OS4ED/openSIS-Classic/issues/473 (opens in a new tab)
- github.com/OS4ED/openSIS-Classic/ (opens in a new tab)