CVE-2023-26519: Auth

Q: How do I fix CVE-2023-26519?

publish to schedule: upgrade to 4.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2023-26519 being exploited?

CVE-2023-26519 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-2023-26519 affect?

CVE-2023-26519 affects publish to schedule. Severity is medium (CVSS 5.9). Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Alex Benfica Publish to Schedule plugin <= 4.5.4 versions.

Q: How urgent is CVE-2023-26519?

Priority 28/100. No elevated risk signals yet.

Routine

MEDIUM 5.9UPGRADE

CVE-2023-26519 is a medium-severity flaw (CVSS 5.9) affecting publish to schedule. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Alex Benfica Publish to Schedule plugin <= 4.5.4 versions.

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 69%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-05-06
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: publish to schedule project

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

Am I affected?

Timeline

2023-05-06 07:15 UTCPublished CVE record published
2026-06-17 05:43 UTCUpdated Record last modified

publish to schedule project publish to schedule UPGRADE

Affected: < 4.5.5

Fixed in: 4.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy publish-to-schedule || rpm -q publish-to-schedule || publish-to-schedule --version

2. UPGRADE to 4.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade publish-to-schedule

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade publish-to-schedule

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-2023-26519?

publish to schedule: upgrade to 4.5.5. Exact commands for each OS are on this page.

Is CVE-2023-26519 being exploited?

CVE-2023-26519 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-2023-26519 affect?

CVE-2023-26519 affects publish to schedule. Severity is medium (CVSS 5.9). Auth. (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Alex Benfica Publish to Schedule plugin <= 4.5.4 versions.

How urgent is CVE-2023-26519?

Priority 28/100. No elevated risk signals yet.

Related CVEs

CVE-2023-25994 MEDIUM 5.4 UPGRADE Cross-Site Request Forgery (CSRF) vulnerability in Alex Benfica Publish to Schedule plugin <= 4.4.2 versions.

References

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