The Zero Spam for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Nested POST Array Keys via Contact Form 7 Integration in all versions up to, and including, 5.7.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is delivered by submitting a Contact Form 7 request with a nested POST array key containing arbitrary HTML or JavaScript — PHP parses the field name into a nested array key, which is stored verbatim in the zerospam_log.submission_data column when Zero Spam flags the submission as spam due to the absence of the zerospam_david_walsh_key field.
CVE-2026-96752
Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-25. a secondary CVSS source baseline 7.2; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.2
- EG Score
- 7.2(high)
- EG Risk
- 47(Track)EG Risk 47/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity72% × 45%Exploitation0% × 40%Automatability100% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
September 25, 2026
Last Modified
September 25, 2026
References (6)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/zero-spam/tags/5.7.10/core/class-utilities.php#L65
- security@wordfencehttps://plugins.trac.wordpress.org/browser/zero-spam/tags/5.7.10/includes/class-db.php#L442
- security@wordfencehttps://plugins.trac.wordpress.org/browser/zero-spam/tags/5.7.10/includes/templates/admin-modal-details.php#L200
- security@wordfencehttps://plugins.trac.wordpress.org/browser/zero-spam/tags/5.7.10/modules/contactform7/class-contactform7.php#L85
- security@wordfencehttps://plugins.trac.wordpress.org/changeset?reponame=&old=3709762%40zero-spam&new=3709762%40zero-spam
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/01540d78-ae46-4556-9a7f-3f8b8dbbcbd7?source=cve
Vendor Advisories for CVE-2026-96752(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 7× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-25 11:39 UTCEG score recompute
- 2026-09-25 11:39 UTCGHSA enrichment
- 2026-09-25 10:44 UTCEG score recompute
- 2026-09-25 10:44 UTCGHSA enrichment
- 2026-09-25 08:27 UTCEG score recompute
- 2026-09-25 07:47 UTCEG score recompute
- 2026-09-25 07:46 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Frequently asked(4)
What is CVE-2026-96752?
When was CVE-2026-96752 disclosed?
What is the CVSS score of CVE-2026-96752?
How do I remediate CVE-2026-96752?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-96752
Is Your Infrastructure Affected by CVE-2026-96752?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.