How to fix CVE-2025-4858?

During next maintenance window: Identify affected systems and apply vendor patches when convenient. Verify Content-Security-Policy and output encoding.

Is PHP affected by CVE-2025-4858?

Organizations using A vulnerability should be aware of moderate risk from CVE-2025-4858, a cross-site scripting vulnerability rated CVSS 4.8. Attackers could inject scripts to steal sessions or perform actions as authenticated users. Proof-of-concept code is publicly available.

CVE-2025-4858

MEDIUM

2025-05-18 [email protected]

4.8

CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Scope

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:42 vuln.today

PoC Detected

May 22, 2025 - 18:19 vuln.today

Public exploit code

CVE Published

May 18, 2025 - 04:15 nvd

MEDIUM 4.8

Description

A vulnerability was found in D-Link DAP-2695 120b36r137_ALL_en_20210528. It has been declared as problematic. This vulnerability affects unknown code of the file /adv_arpspoofing.php of the component ARP Spoofing Prevention Page. The manipulation of the argument harp_mac leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. This vulnerability only affects products that are no longer supported by the maintainer.

Analysis

A vulnerability was found in D-Link DAP-2695 120b36r137_ALL_en_20210528. Rated medium severity (CVSS 4.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical Context

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 was found in D-Link DAP-2695 120b36r137_ALL_en_20210528. It has been declared as problematic. This vulnerability affects unknown code of the file /adv_arpspoofing.php of the component ARP Spoofing Prevention Page. The manipulation of the argument harp_mac leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Other parameters might be affected as well. This vulnerability only affects products that are no longer supported by the maintainer. Affected products include: Dlink Dap-2695 Firmware.

Affected Products

Dlink Dap-2695 Firmware.

Remediation

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.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.2

CVSS: +24

POC: +20

CVE-2025-4858 vulnerability details – vuln.today

Back

CVE-2025-4858

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

Share

CVE-2025-4858

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

Share

External POC / Exploit Code