CVE-2023-0603: The Sloth Logo Customizer WordPress plugin through 2.0.2 does not have CSRF check when updating its settings,

Q: How do I fix CVE-2023-0603?

sloth logo customizer: upgrade to newer than 2.0.2. Exact commands for each OS are on this page.

Q: Is CVE-2023-0603 being exploited?

CVE-2023-0603 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-2023-0603 affect?

CVE-2023-0603 affects sloth logo customizer. Severity is high (CVSS 8.8). The Sloth Logo Customizer WordPress plugin through 2.0.2 does not have CSRF check when updating its settings, and is missing sanitisation as well as escaping, which could allow attackers to make logged in admin add Stored XSS payloads via a

Q: How urgent is CVE-2023-0603?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

This week

HIGH 8.8UPGRADE

CVE-2023-0603 is a high-severity flaw (CVSS 8.8) affecting sloth logo customizer. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Sloth Logo Customizer WordPress plugin through 2.0.2 does not have CSRF check when updating its settings, and is missing sanitisation as well as escaping, which could allow attackers to make logged in admin add Stored XSS payloads via a CSRF attack

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	13.9% (top 3%)
CISA exploited list	No
Published	2023-05-08
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: sloth logo customizer project

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

Am I affected?

Timeline

2023-05-08 14:15 UTCPublished CVE record published
2026-06-17 05:25 UTCUpdated Record last modified

sloth logo customizer project sloth logo customizer UPGRADE

Affected: <= 2.0.2

Fixed in: newer than 2.0.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy sloth-logo-customizer || rpm -q sloth-logo-customizer || sloth-logo-customizer --version

2. UPGRADE to newer than 2.0.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sloth-logo-customizer

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sloth-logo-customizer

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-2023-0603?

sloth logo customizer: upgrade to newer than 2.0.2. Exact commands for each OS are on this page.

Is CVE-2023-0603 being exploited?

CVE-2023-0603 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-2023-0603 affect?

CVE-2023-0603 affects sloth logo customizer. Severity is high (CVSS 8.8). The Sloth Logo Customizer WordPress plugin through 2.0.2 does not have CSRF check when updating its settings, and is missing sanitisation as well as escaping, which could allow attackers to make logged in admin add Stored XSS payloads via a

How urgent is CVE-2023-0603?

Priority 60/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Software pages

WordPress vulnerabilities

References

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