What is CVE-2026-5615?

CVE-2026-5615 is a medium-severity vulnerability in Givanz Vvvebjs, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-04-06.

How severe is CVE-2026-5615?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Is CVE-2026-5615 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Givanz Vvvebjs

CVE-2026-5615

A weakness has been identified in givanz Vvvebjs up to 2.0.5. The affected element is an unknown function of the file upload.php of the component File Upload Endpoint. This manipulation of the argument uploadAllowExtensions causes cross site scripting. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks. Patch name: 8cac22cff99b8bc701c408aa8e887fa702755336. Applying a patch is the recommended action to fix this issue. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-04-06 · last modified 2026-07-24.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (61.7th percentile), scored 2026-10-05.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.010 · change: +0.002

Affected products

Givanz Vvvebjs — versions 2.0.0, 2.0.1, 2.0.2

Weakness classification (CWE)

Public proof-of-concept exploits

sahmsec/CVE-2026-5615

References

vuldb.com/vuln/355406 (technical-description, vdb-entry)
vuldb.com/vuln/355406/cti (signature, permissions-required)
vuldb.com/submit/785563 (third-party-advisory)
tcn60zf28jhk.feishu.cn/wiki/Cr4KwMPiMi65fFkI9Vyc3oX2n0f (exploit)
github.com/givanz/VvvebJs/commit/8cac22cff99b8bc701c408aa8e887fa702755336 (patch)
github.com/givanz/VvvebJs/ (product)

Frequently asked questions

What is CVE-2026-5615?: CVE-2026-5615 is a medium-severity vulnerability in Givanz Vvvebjs, classified under Cross-site Scripting. CVSS score: 4.3/10. Published 2026-04-06.
How severe is CVE-2026-5615?: Medium severity. CVSS v3 base score is 4.3 out of 10.
Is CVE-2026-5615 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.