CVE-2025-26791

Exp

DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).

Published: 2025-02-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-26791 is rated Exploit Available (50/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.56%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-26791

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-26791

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.17% 0.56% +0.39%
2 2026-06-10 0.10% 0.17% +0.07%
3 2026-04-05 — 0.10% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-26791

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.4 2.7 [email protected]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]

Weakness enumeration for CVE-2025-26791

GitHub Security Advisory for CVE-2025-26791

GHSA-vhxf-7vqr-mrjg · Severity: medium · Ecosystem: npm — DOMPurify allows Cross-site Scripting (XSS)

OS Trackers for CVE-2025-26791

vendor priority summary link
debian not yet assigned CVE-2025-26791 not yet assigned priority: Debian including 1 source packages (node-dompurify), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 3, open 1. https://security-tracker.debian.org/tracker/CVE-2025-26791
redhat medium — https://access.redhat.com/security/cve/CVE-2025-26791
suse medium CVE-2025-26791 severity moderate: SUSE including 3 source package names (argocd-cli-2.14.8-1.1, argocd-cli-bash-completion-2.14.8-1.1, argocd-cli-zsh-completion-2.14.8-1.1), 3 product×package rows across 1 product lines (openSUSE Tumbleweed): Fixed 3. https://www.suse.com/security/cve/CVE-2025-26791/
ubuntu medium CVE-2025-26791 medium priority: Ubuntu including 1 source packages (node-dompurify), 7 status rows across 7 suites (focal, jammy, noble, oracular, plucky, questing, upstream): needs-triage 4, ignored 2, DNE 1. https://ubuntu.com/security/CVE-2025-26791

Affected software / configurations for CVE-2025-26791

Vendor Product Version Raw CPE
cure53 dompurify < 3.2.4 cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:*

References for CVE-2025-26791

cvelogic Threat Intelligence