CVE-2024-5191Network attack vector

Stored XSS via unsanitized SVG MIME allowance

Published Jun 21, 2024 · Updated Apr 8, 2026

Stored XSS in WPMU DEV Branda 3.4.17 and earlier allows remote authenticated users to inject scripts through uploaded SVG files. The Images utility accepts the configured mime_types value without adequately sanitizing SVG content or escaping it when rendered. Author-level access is sufficient; the stored payload runs when another user opens the injected page, enabling actions in that user's browser context.

CVSS severity6.4
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in WPMU DEV Branda 3.4.17 and earlier allows remote authenticated users to inject scripts through uploaded SVG files. The Images utility accepts the configured mime_types value without adequately sanitizing SVG content or escaping it when rendered. Author-level access is sufficient; the stored payload runs when another user opens the injected page, enabling actions in that user's browser context.

The record

CVE
CVE-2024-5191
Published
Jun 21, 2024
Updated
Apr 8, 2026
Vendor
WPMU DEV
Product
Branda
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=3.4.17

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPMU DEV · Brandaversion=0 <=3.4.17

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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