CVE-2026-113683

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.35% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 29.2% of scored records. A rank, not a probability.

NVD base score

5.1 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-10-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-20 15:40Z8 DAYS AGO

Last updated

2026-10-23 01:48Z6 DAYS AGO

Reserved

2026-10-20

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 5.1)

CNA CVSS vector

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

Weaknesses

• CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base

Data version

5.2

Document digest

b533a06326534c45e4edb47758c345e370bfac2aca9dd67af4c6ee7c3337bcbd

• github.comhttps://github.com/jcrodriguez-dis/moodle-mod_vpl/commit/5dd7fe00df2816b692f8ea262c6fa8cdee0b26b7patch
• github.comVPL V5.0.0 Release Noteshttps://github.com/jcrodriguez-dis/moodle-mod_vpl/releases/tag/V5.0.0release-notes
• github.comhttps://github.com/jcrodriguez-dis/moodle-mod_vpl/blob/V4.5.0/similarity/diff.class.php#L412-L419technical-description
• www.vulncheck.comVulnCheck Advisory: VPL for Moodle before 5.0.0 Reflected XSS via similarity/diff.php filenamehttps://www.vulncheck.com/advisories/vpl-for-moodle-before-5.0.0-reflected-xss-via-similarity-diff-php-filenamethird-party-advisory