CVE-2023-30777 is an unauthenticated reflected cross-site scripting (XSS) vulnerability in the WP Engine Advanced Custom Fields Pro and Advanced Custom Fields plugins for WordPress, affecting versions up to and including 6.1.5. The vulnerability allows an attacker to inject malicious JavaScript code into a URL parameter, which is then reflected in the response and executed in the context of the victim's browser when they visit the crafted URL.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository provides a proof-of-concept (PoC) exploit for CVE-2023-30777, a reflected XSS vulnerability in the Advanced Custom Fields WordPress plugin. The repository contains two files: a README.md describing the vulnerability and crediting the source, and a Python script (alucard0x1.py) that generates a malicious URL. The script constructs a URL targeting the /wp-admin/edit.php endpoint of a WordPress site, injecting a JavaScript payload via the 'post_status' parameter. When a victim visits the generated URL, the payload executes an alert displaying the document domain, demonstrating the XSS vulnerability. The exploit is a simple PoC and does not include advanced payloads or automation for exploitation beyond URL generation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
No public activity tracked yet. Mallory keeps watching.
No public activity observed for this vulnerability.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.