CVE-2023-36503: Auth

Q: How do I fix CVE-2023-36503?

maxbuttons: upgrade to newer than 9.5.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-36503 being exploited?

CVE-2023-36503 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-2023-36503 affect?

CVE-2023-36503 affects maxbuttons. Severity is medium (CVSS 6.5). Auth. (contributor+) Cross-Site Scripting (XSS) vulnerability in Max Foundry WordPress Button Plugin MaxButtons plugin <= 9.5.3 versions.

Q: How urgent is CVE-2023-36503?

Priority 31/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2023-36503 is a medium-severity flaw (CVSS 6.5) affecting maxbuttons. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Auth. (contributor+) Cross-Site Scripting (XSS) vulnerability in Max Foundry WordPress Button Plugin MaxButtons plugin <= 9.5.3 versions.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-07-25
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: maxfoundry

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

Am I affected?

Timeline

2023-07-25 14:15 UTCPublished CVE record published
2026-06-17 06:06 UTCUpdated Record last modified

maxfoundry maxbuttons UPGRADE

Affected: <= 9.5.3

Fixed in: newer than 9.5.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy maxbuttons || rpm -q maxbuttons || maxbuttons --version

2. UPGRADE to newer than 9.5.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade maxbuttons

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade maxbuttons

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-2023-36503?

maxbuttons: upgrade to newer than 9.5.3. Exact commands for each OS are on this page.

Is CVE-2023-36503 being exploited?

CVE-2023-36503 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-2023-36503 affect?

CVE-2023-36503 affects maxbuttons. Severity is medium (CVSS 6.5). Auth. (contributor+) Cross-Site Scripting (XSS) vulnerability in Max Foundry WordPress Button Plugin MaxButtons plugin <= 9.5.3 versions.

How urgent is CVE-2023-36503?

Priority 31/100. No elevated risk signals yet.

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2024-8968 MEDIUM 4.7 UPGRADE The WordPress Button Plugin MaxButtons WordPress plugin before 9.8.1 does not sanitise and escape some of its
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CVE-2024-3026 MEDIUM 5.4 UPGRADE The WordPress Button Plugin MaxButtons WordPress plugin before 9.7.8 does not sanitise and escape some paramet
CVE-2024-10555 MEDIUM 4.8 UPGRADE The WordPress Button Plugin MaxButtons WordPress plugin before 9.8.1 does not sanitise and escape some of its
CVE-2023-6594 MEDIUM 4.4 UPGRADE The WordPress Button Plugin MaxButtons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via a

References

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