CVE-2023-30777

WordPress Advanced Custom Fields / Advanced Custom Fields PRO plugins <= 6.1.5 vulnerable to Cross Site Scripting (XSS)

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in WP Engine Advanced Custom Fields Pro, WP Engine Advanced Custom Fields plugins <= 6.1.5 versions.

Affected

WP Engine · Advanced Custom Fields Pro · Advanced Custom Fields

CVSS v3.1 NVD

6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 PATCHSTACK

7.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

EPSS

39.00% chance of exploitation in the next 30 days, 99th percentile

Nuclei

medium · CWE-79

Published

2023-05-10

Updated

2026-04-28

Proof-of-concept exploits (2)

• https://patchstack.com/articles/reflected-xss-in-advanced-custom-fields-plugins-affecting…
• Alucard0x1/CVE-2023-307778★ · 2023-06-17

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-30777.yaml

Security advisories

• https://patchstack.com/database/vulnerability/advanced-custom-fields-pro/wordpress-advanc…
• https://patchstack.com/database/vulnerability/advanced-custom-fields/wordpress-advanced-c…

References

• CVE Record
• NVD entry

Related

• CVE-2023-2833
• CVE-2023-2986
• CVE-2024-28000