How to fix CVE-2025-52035?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is PHP affected by CVE-2025-52035?

CVE-2025-52035 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 6.1. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2025-52035

MEDIUM

2025-08-26 [email protected]

PHP XSS Notescms

6.1

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:08 vuln.today

PoC Detected

Sep 17, 2025 - 17:42 vuln.today

Public exploit code

CVE Published

Aug 26, 2025 - 15:15 nvd

MEDIUM 6.1

DescriptionNVD

A vulnerability in NotesCMS and specifically in the page /index.php?route=notes. The manipulation of the title of the service descriptions leads to a stored XSS vulnerability. The issue was confirmed to be present in the source code as of commit 7d821a0f028b0778b245b99ab3d3bff1ac10e2d3 (dated 2024-05-08) and was fixed in commit 95322c5121dbd7070f3bd54f2848079654a0a8ea (dated 2025-03-31). The attack can be launched remotely.

AnalysisAI

A vulnerability in NotesCMS and specifically in the page /index.php?route=notes. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. A vulnerability in NotesCMS and specifically in the page /index.php?route=notes. The manipulation of the title of the service descriptions leads to a stored XSS vulnerability. The issue was confirmed to be present in the source code as of commit 7d821a0f028b0778b245b99ab3d3bff1ac10e2d3 (dated 2024-05-08) and was fixed in commit 95322c5121dbd7070f3bd54f2848079654a0a8ea (dated 2025-03-31). The attack can be launched remotely. Affected products include: Exe-System Notescms.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

CVE-2025-52035 vulnerability details – vuln.today

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