VDB-360153 · CVE-2026-42524 · EUVD-2026-26226

Jenkins HTML Publisher Plugin up to 427 cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in Jenkins HTML Publisher Plugin up to 427 and classified as problematic. This affects an unknown part. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2026-42524. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in Jenkins HTML Publisher Plugin up to 427. This affects an unknown part. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Jenkins HTML Publisher Plugin 427 and earlier does not escape job name and URL in the legacy wrapper file, resulting in a stored cross-site scripting (XSS) vulnerability exploitable by attackers with Item/Configure permission.

The advisory is shared at jenkins.io. This vulnerability is uniquely identified as CVE-2026-42524 since 04/28/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 310885 (Jenkins plugins Multiple Vulnerabilities (2026-04-29)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (310885), EUVD (EUVD-2026-26226) and CERT Bund (WID-SEC-2026-1320). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

Jenkins Jenkins

Productinfo

Type

Continuous Integration Software

Vendor

Jenkins

Name

HTML Publisher Plugin

Version

License

open-source

Website

Vendor: https://jenkins.io/

CPE 2.3info

🔒

CPE 2.2info

🔒

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 310885
Nessus Name: Jenkins plugins Multiple Vulnerabilities (2026-04-29)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/28/2026 CVE reserved
04/29/2026 +1 days Advisory disclosed
04/29/2026 +0 days VulDB entry created
05/01/2026 +2 days VulDB entry last update

Sourcesinfo

Vendor: jenkins.io

Advisory: jenkins.io
Status: Confirmed

CVE: CVE-2026-42524 (🔒)
GCVE (CVE): GCVE-0-2026-42524
GCVE (VulDB): GCVE-100-360153
EUVD: 🔒
CERT Bund: WID-SEC-2026-1320 - Jenkins Plugins: Mehrere Schwachstellen

Entryinfo

Created: 04/29/2026 16:15
Updated: 05/01/2026 19:10
Changes: 04/29/2026 16:15 (53), 04/29/2026 17:54 (1), 04/30/2026 01:29 (2), 05/01/2026 19:10 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.