CVE-2026-14840

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-08-01. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

The YOP Poll WordPress plugin before 7.0.6 does not validate the connection's origin IP address and instead trusts client-controlled forwarding headers when enforcing its per-IP vote restriction, allowing unauthenticated attackers to bypass the vote limit and cast unlimited votes on a public poll.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
11%
KEV
Not listed

Published

August 1, 2026

Last Modified

August 5, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

YOP Poll < 7.0.6 – Unauthenticated Vote Restriction Bypass via IP Header Spoofing | CVE 2026-14840 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/fc810ca2-3f27-414d-b94a-68842925b7c6/

Vendor Advisories for CVE-2026-14840(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 20× in last 7d / 54× 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. 2026-08-20 02:09 UTCEG score recompute
  2. 2026-08-20 02:09 UTCGHSA enrichment
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-19 01:34 UTCEG score recompute
  5. 2026-08-19 01:34 UTCGHSA enrichment
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-18 01:00 UTCEG score recompute
  8. 2026-08-18 01:00 UTCGHSA enrichment
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 23:43 UTCEG score recompute
  11. 2026-08-16 23:43 UTCGHSA enrichment
  12. 2026-08-16 14:56 UTCEPSS rescore
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 23:09 UTCEG score recompute
  15. 2026-08-15 23:09 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 22:34 UTCGHSA enrichment
  18. 2026-08-13 22:00 UTCEG score recompute
  19. 2026-08-13 22:00 UTCGHSA enrichment
  20. 2026-08-13 22:00 UTCEPSS rescore
  21. 2026-08-12 21:26 UTCEG score recompute
  22. 2026-08-12 21:26 UTCGHSA enrichment
  23. 2026-08-12 13:50 UTCEPSS rescore
  24. 2026-08-11 20:52 UTCEG score recompute
  25. 2026-08-11 20:52 UTCGHSA enrichment
Show 29 more
  1. 2026-08-11 13:42 UTCEPSS rescore
  2. 2026-08-10 23:59 UTCEPSS rescore
  3. 2026-08-10 20:19 UTCGHSA enrichment
  4. 2026-08-09 19:45 UTCEG score recompute
  5. 2026-08-09 19:45 UTCGHSA enrichment
  6. 2026-08-09 13:46 UTCEPSS rescore
  7. 2026-08-08 19:12 UTCEG score recompute
  8. 2026-08-08 19:12 UTCGHSA enrichment
  9. 2026-08-08 16:37 UTCEPSS rescore
  10. 2026-08-07 18:38 UTCEG score recompute
  11. 2026-08-07 18:38 UTCGHSA enrichment
  12. 2026-08-06 18:04 UTCEG score recompute
  13. 2026-08-06 18:04 UTCGHSA enrichment
  14. 2026-08-06 13:46 UTCEPSS rescore
  15. 2026-08-05 19:17 UTCEPSS rescore
  16. 2026-08-05 17:30 UTCEG score recompute
  17. 2026-08-05 17:30 UTCGHSA enrichment
  18. 2026-08-05 16:52 UTCEG score recompute▲ 5.30
  19. 2026-08-05 16:52 UTCGHSA enrichment
  20. 2026-08-05 16:50 UTCMITRE cvelistV5CVSS v3 → 5.3 · severity → MEDIUM
  21. 2026-08-04 15:09 UTCEPSS rescore
  22. 2026-08-04 10:38 UTCEPSS rescore
  23. 2026-08-04 00:55 UTCEG score recompute
  24. 2026-08-04 00:55 UTCGHSA enrichment
  25. 2026-08-03 10:35 UTCEPSS rescore
  26. 2026-08-02 02:26 UTCEPSS rescore
  27. 2026-08-01 07:22 UTCNVD update
  28. 2026-08-01 06:45 UTCEG score recompute
  29. 2026-08-01 06:42 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-14840?
CVE-2026-14840 is a medium vulnerability published on August 1, 2026. The YOP Poll WordPress plugin before 7.0.6 does not validate the connection's origin IP address and instead trusts client-controlled forwarding headers when enforcing its per-IP vote restriction, allowing unauthenticated attackers to bypass the vote limit and cast unlimited votes on a public poll.
When was CVE-2026-14840 disclosed?
CVE-2026-14840 was first published in the National Vulnerability Database on August 1, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-14840 actively exploited?
CVE-2026-14840 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.5% of all scored CVEs.
What is the CVSS score of CVE-2026-14840?
CVE-2026-14840 has a CVSS v3.1 base score of 5.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-14840?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-14840, 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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