CVE-2022-25887: The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to i

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MEDIUM 5.3REMOTEUPGRADE

CVE-2022-25887 is a medium-severity flaw (CVSS 5.3) affecting sanitize-html. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-1333
Published	2022-08-30
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: apostrophecms

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-08-30 05:15 UTCPublished CVE record published
2026-06-17 04:34 UTCUpdated Record last modified

apostrophecms sanitize-html UPGRADE

Affected: < 2.7.1

Fixed in: 2.7.1

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls sanitize-html

2. UPGRADE to 2.7.1

npm install sanitize-html@">=2.7.1"

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-25887?

sanitize-html: upgrade to 2.7.1. Exact commands for each OS are on this page.

Is CVE-2022-25887 being exploited?

CVE-2022-25887 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-25887 affect?

CVE-2022-25887 affects sanitize-html. Severity is medium (CVSS 5.3). The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.

How urgent is CVE-2022-25887?

Priority 42/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-40186 MEDIUM 6.1 DOWNGRADE UPGRADE ApostropheCMS is an open-source Node.js content management system
CVE-2024-21501 MEDIUM 5.3 UPGRADE MITIGATE Versions of the package sanitize-html before 2.12.1 are vulnerable to Information Exposure when used on the ba
CVE-2021-26540 MEDIUM 5.3 UPGRADE Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the "allowe
CVE-2021-26539 MEDIUM 5.3 UPGRADE Apostrophe Technologies sanitize-html before 2.3.1 does not properly handle internationalized domain name (IDN
CVE-2019-25225 MEDIUM 6.1 UPGRADE `sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting (XSS)

References

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