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CVE-2024-26503VulnerabilityPublished Updated

CVE-2024-26503: n/a

Source CVE Database V5

0

Not known to be exploited · public exploit available (Exploit-DB) · CVSS 9.1 Critical.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
2.9% chance of exploitation in 30 days – higher than 87% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Exploitation evidence

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

  1. Disclosed: evidence found.

    CVE published 14 Mar 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

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

    Not in CISA KEV and no source reports exploitation

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

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE ID reserved

    by MITRE Corporation

    , 24 days before disclosure

  2. CVE published

    on cve.org

    , t = 0

  3. , 2.6 years after disclosure

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Until a fix is available, restrict access to the certbadge.php endpoint and limit user privileges to reduce risk.

Description

An Unrestricted File Upload vulnerability exists in Greek Universities Network Open eClass version 3.15 and earlier. This flaw allows attackers with high privileges to upload crafted files via the certbadge.php endpoint, potentially enabling arbitrary code execution. The vulnerability has a critical severity with a CVSS score of 9.1.

Reports on CVE-2024-26503

References

Community reviews

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