CVE-2024-13784

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-16. a secondary CVSS source baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Contact Form, Survey, Quiz & Popup Form Builder – ARForms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8.5 via deserialization of untrusted input from form submissions. This makes it possible for unauthenticated attackers to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
59(Track)
EG Risk 59/100SSVC: 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 computed
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

August 16, 2026

Last Modified

August 20, 2026

Advisory Details (1)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

Contact Form, Survey, Quiz & Popup Form Builder – ARForms – WordPress plugin | WordPress.org

https://wordpress.org/plugins/arforms-form-builder/

Vendor Advisories for CVE-2024-13784(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 43× in last 7d / 43× 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.

  1. 2026-08-21 06:00 UTCGHSA enrichment
  2. 2026-08-21 01:45 UTCEG score recompute
  3. 2026-08-21 01:45 UTCGHSA enrichment
  4. 2026-08-20 22:53 UTCEPSS rescore
  5. 2026-08-20 21:29 UTCGHSA enrichment
  6. 2026-08-20 17:14 UTCGHSA enrichment
  7. 2026-08-20 13:00 UTCGHSA enrichment
  8. 2026-08-20 09:27 UTCGHSA enrichment
  9. 2026-08-20 05:13 UTCGHSA enrichment
  10. 2026-08-20 00:57 UTCGHSA enrichment
  11. 2026-08-19 20:42 UTCEG score recompute
  12. 2026-08-19 20:42 UTCGHSA enrichment
  13. 2026-08-19 17:02 UTCEPSS rescore
  14. 2026-08-19 16:27 UTCGHSA enrichment
  15. 2026-08-19 12:13 UTCGHSA enrichment
  16. 2026-08-19 07:56 UTCGHSA enrichment
  17. 2026-08-19 03:41 UTCGHSA enrichment
  18. 2026-08-18 23:27 UTCGHSA enrichment
  19. 2026-08-18 19:11 UTCGHSA enrichment
  20. 2026-08-18 14:57 UTCEG score recompute
  21. 2026-08-18 14:56 UTCGHSA enrichment
  22. 2026-08-18 13:46 UTCEPSS rescore
  23. 2026-08-18 09:16 UTCGHSA enrichment
  24. 2026-08-18 05:01 UTCGHSA enrichment
  25. 2026-08-18 00:46 UTCGHSA enrichment
Show 18 more
  1. 2026-08-17 20:29 UTCEG score recompute
  2. 2026-08-17 20:29 UTCGHSA enrichment
  3. 2026-08-17 19:29 UTCGHSA enrichment
  4. 2026-08-17 15:13 UTCEG score recompute
  5. 2026-08-17 15:13 UTCGHSA enrichment
  6. 2026-08-17 13:45 UTCEPSS rescore
  7. 2026-08-17 10:58 UTCGHSA enrichment
  8. 2026-08-17 06:43 UTCGHSA enrichment
  9. 2026-08-17 02:29 UTCGHSA enrichment
  10. 2026-08-16 22:14 UTCGHSA enrichment
  11. 2026-08-16 17:59 UTCEG score recompute
  12. 2026-08-16 17:59 UTCGHSA enrichment
  13. 2026-08-16 14:54 UTCEPSS rescore
  14. 2026-08-16 13:44 UTCEG score recompute
  15. 2026-08-16 13:44 UTCGHSA enrichment
  16. 2026-08-16 09:29 UTCEG score recompute
  17. 2026-08-16 08:37 UTCEG score recompute
  18. 2026-08-16 08:37 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2024-13784?
CVE-2024-13784 is a critical vulnerability published on August 16, 2026. The Contact Form, Survey, Quiz & Popup Form Builder – ARForms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 1.8.5 via deserialization of untrusted input from form submissions. This makes it possible for unauthenticated attackers to inject a PHP…
When was CVE-2024-13784 disclosed?
CVE-2024-13784 was first published in the National Vulnerability Database on August 16, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-13784 actively exploited?
CVE-2024-13784 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 58.0% of all scored CVEs.
What is the CVSS score of CVE-2024-13784?
CVE-2024-13784 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2024-13784?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-13784, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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