CVE-2021-23411: Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality

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MEDIUM 5.4MITIGATE

CVE-2021-23411 is a medium-severity flaw (CVSS 5.4) affecting anchorme. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality. It accepts input that can result in the output (an anchor a tag) containing undesirable Javascript code that can be executed upon user interaction.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 33%)
CISA exploited list	No
Weakness	CWE-79
Published	2021-07-21
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: anchorme project

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

Am I affected?

Timeline

2021-07-21 15:15 UTCPublished CVE record published
2026-06-17 03:38 UTCUpdated Record last modified

anchorme project anchorme MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

npm ls anchorme

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2021-23411?

anchorme: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-23411 being exploited?

CVE-2021-23411 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-2021-23411 affect?

CVE-2021-23411 affects anchorme. Severity is medium (CVSS 5.4). Affected versions of this package are vulnerable to Cross-site Scripting (XSS) via the main functionality. It accepts input that can result in the output (an anchor a tag) containing undesirable Javascript code that can be executed upon use

How urgent is CVE-2021-23411?

Priority 41/100. Public exploit reference

References

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