DOMPurify up to 3.4.5 Hooks sanitize allowedTags/allowedAttributes Remote Code Execution

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k3.35-

Summaryinfo

A vulnerability, which was classified as critical, has been found in DOMPurify up to 3.4.5. Affected is the function sanitize of the component Hooks. The manipulation of the argument allowedTags/allowedAttributes leads to Remote Code Execution. This vulnerability is listed as CVE-2026-65902. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in DOMPurify up to 3.4.5. It has been rated as critical. This issue affects the function sanitize of the component Hooks. The manipulation of the argument allowedTags/allowedAttributes with an unknown input leads to a remote code execution vulnerability. Impacted is confidentiality, integrity, and availability.

The identification of this vulnerability is CVE-2026-65902. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

Upgrading to version 3.4.7 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Remote Code Execution
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: DOMPurify 3.4.7

Timelineinfo

07/23/2026 Advisory disclosed
07/23/2026 +0 days VulDB entry created
07/23/2026 +0 days VulDB entry last update

Sourcesinfo

Status: Confirmed

CVE: CVE-2026-65902 (🔒)
GCVE (CVE): GCVE-0-2026-65902
GCVE (VulDB): GCVE-100-382733

Entryinfo

Created: 07/23/2026 17:03
Changes: 07/23/2026 17:03 (50)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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