CVE-2020-36510: The 15Zine WordPress theme before 3.3.0 does not sanitise and escape the cbi parameter before outputing it bac

Q: How do I fix CVE-2020-36510?

15zine: upgrade to 3.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2020-36510 being exploited?

CVE-2020-36510 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-2020-36510 affect?

CVE-2020-36510 affects 15zine. Severity is medium (CVSS 6.1). The 15Zine WordPress theme before 3.3.0 does not sanitise and escape the cbi parameter before outputing it back in the response via the cb_s_a AJAX action, leading to a Reflected Cross-Site Scripting

Q: How urgent is CVE-2020-36510?

Priority 48/100. Public exploit reference

This month

MEDIUM 6.1UPGRADE

CVE-2020-36510 is a medium-severity flaw (CVSS 6.1) affecting 15zine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The 15Zine WordPress theme before 3.3.0 does not sanitise and escape the cbi parameter before outputing it back in the response via the cb_s_a AJAX action, leading to a Reflected Cross-Site Scripting

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-02-28
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: codetipi

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

Am I affected?

Timeline

2022-02-28 09:15 UTCPublished CVE record published
2026-06-17 03:15 UTCUpdated Record last modified

codetipi 15zine UPGRADE

Affected: < 3.3.0

Fixed in: 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy 15zine || rpm -q 15zine || 15zine --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade 15zine

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade 15zine

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: WordPress 15Zine <3.3.0 - Cross-Site Scripting

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-2020-36510?

15zine: upgrade to 3.3.0. Exact commands for each OS are on this page.

Is CVE-2020-36510 being exploited?

CVE-2020-36510 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-2020-36510 affect?

CVE-2020-36510 affects 15zine. Severity is medium (CVSS 6.1). The 15Zine WordPress theme before 3.3.0 does not sanitise and escape the cbi parameter before outputing it back in the response via the cb_s_a AJAX action, leading to a Reflected Cross-Site Scripting

How urgent is CVE-2020-36510?

Priority 48/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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