CVE-2024-27962Network attack vector

Browser script execution via unescaped request input

Published Mar 21, 2024 · Updated Apr 28, 2026

Reflected XSS in Florian Krauthan wp-mpdf 3.7.1 and earlier allows remote attackers to execute script in a visitor's browser. A bundled GeSHi file returns attacker-controlled request input in an HTML response without sufficient sanitization or output escaping. Exploitation requires a visitor to open a crafted link; script execution is confined to that visitor's browser context.

CVSS severity7.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Reflected XSS in Florian Krauthan wp-mpdf 3.7.1 and earlier allows remote attackers to execute script in a visitor's browser. A bundled GeSHi file returns attacker-controlled request input in an HTML response without sufficient sanitization or output escaping. Exploitation requires a visitor to open a crafted link; script execution is confined to that visitor's browser context.

The record

CVE
CVE-2024-27962
Published
Mar 21, 2024
Updated
Apr 28, 2026
Vendor
Florian Krauthan
Product
wp-mpdf
Classifications
CWE-79, CAPEC-591, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=3.7.1 changes=[{"at":"3.8","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Florian Krauthan · wp-mpdfversion=n/a <=3.7.1 changes=[{"at":"3.8","status":"unaffected"}]

Published CVSS scores

7.1PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-591Reflected XSS
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo