CVE-2023-40680: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoa

Q: How do I fix CVE-2023-40680?

yoast seo: upgrade to newer than 21.0. Exact commands for each OS are on this page.

Q: Is CVE-2023-40680 being exploited?

CVE-2023-40680 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-40680 affect?

CVE-2023-40680 affects yoast seo. Severity is medium (CVSS 5.9). Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoast Yoast SEO allows Stored XSS.This issue affects Yoast SEO: from n/a through 21.0.

Q: How urgent is CVE-2023-40680?

Priority 30/100. No elevated risk signals yet.

Routine

MEDIUM 5.9UPGRADE

CVE-2023-40680 is a medium-severity flaw (CVSS 5.9) affecting yoast seo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoast Yoast SEO allows Stored XSS.This issue affects Yoast SEO: from n/a through 21.0.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.4% (top 63%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-11-30
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: yoast

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

Am I affected?

Timeline

2023-11-30 13:15 UTCPublished CVE record published
2026-06-17 06:19 UTCUpdated Record last modified

yoast yoast seo UPGRADE

Affected: <= 21.0

Fixed in: newer than 21.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy yoast-seo || rpm -q yoast-seo || yoast-seo --version

2. UPGRADE to newer than 21.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade yoast-seo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yoast-seo

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2023-40680?

yoast seo: upgrade to newer than 21.0. Exact commands for each OS are on this page.

Is CVE-2023-40680 being exploited?

CVE-2023-40680 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-2023-40680 affect?

CVE-2023-40680 affects yoast seo. Severity is medium (CVSS 5.9). Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Team Yoast Yoast SEO allows Stored XSS.This issue affects Yoast SEO: from n/a through 21.0.

How urgent is CVE-2023-40680?

Priority 30/100. No elevated risk signals yet.

Related CVEs

CVE-2023-32300 HIGH 7.1 UPGRADE Unauth
CVE-2023-28775 MEDIUM 5.3 UPGRADE Missing Authorization vulnerability in Yoast Yoast SEO Premium.This issue affects Yoast SEO Premium: from n/a

References

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