CVE-2026-8790

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-08-05. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

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

The Football Pool plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the shouttext POST parameter of the Shoutbox widget in all versions up to, and including, 2.13.4 due to insufficient input sanitization and output escaping. When a shoutbox form submission fails the nonce check (or shouttext is empty, or the user is unable to save), the raw POST value is echoed back into a ` element using printf('%s', ...)` with no HTML escaping. This makes it possible for unauthenticated attackers to execute arbitrary web scripts in the browser of an authenticated victim (Subscriber-level or higher) who is tricked into submitting a crafted POST request to a page that contains the Shoutbox widget.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 12, 2026

References (8)

Vendor Advisories for CVE-2026-8790(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 / 53× 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 22:56 UTCEPSS rescore
  2. 2026-08-20 10:04 UTCEG score recompute
  3. 2026-08-20 10:04 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 08:13 UTCEG score recompute
  6. 2026-08-19 08:13 UTCGHSA enrichment
  7. 2026-08-18 13:49 UTCEPSS rescore
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 06:22 UTCEG score recompute
  10. 2026-08-18 06:22 UTCGHSA enrichment
  11. 2026-08-17 13:47 UTCEPSS rescore
  12. 2026-08-17 04:31 UTCEG score recompute
  13. 2026-08-17 04:31 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 02:40 UTCEG score recompute
  17. 2026-08-16 02:40 UTCGHSA enrichment
  18. 2026-08-16 02:15 UTCEPSS rescore
  19. 2026-08-15 01:31 UTCEPSS rescore
  20. 2026-08-15 00:49 UTCGHSA enrichment
  21. 2026-08-13 22:58 UTCEG score recompute
  22. 2026-08-13 22:58 UTCGHSA enrichment
  23. 2026-08-13 22:00 UTCEPSS rescore
  24. 2026-08-12 21:07 UTCEG score recompute
  25. 2026-08-12 21:07 UTCGHSA enrichment
Show 28 more
  1. 2026-08-12 13:51 UTCEPSS rescore
  2. 2026-08-12 04:35 UTCEG score recompute
  3. 2026-08-12 04:35 UTCGHSA enrichment
  4. 2026-08-11 13:43 UTCEPSS rescore
  5. 2026-08-11 02:44 UTCEG score recompute
  6. 2026-08-11 02:44 UTCGHSA enrichment
  7. 2026-08-11 00:00 UTCEPSS rescore
  8. 2026-08-10 00:53 UTCEG score recompute
  9. 2026-08-10 00:53 UTCGHSA enrichment
  10. 2026-08-09 13:47 UTCEPSS rescore
  11. 2026-08-08 23:03 UTCEG score recompute
  12. 2026-08-08 23:03 UTCGHSA enrichment
  13. 2026-08-08 16:37 UTCEPSS rescore
  14. 2026-08-07 21:12 UTCEG score recompute
  15. 2026-08-07 21:12 UTCGHSA enrichment
  16. 2026-08-07 16:30 UTCEPSS rescore
  17. 2026-08-06 19:21 UTCEG score recompute
  18. 2026-08-06 19:21 UTCGHSA enrichment
  19. 2026-08-06 13:47 UTCEPSS rescore
  20. 2026-08-05 19:17 UTCEPSS rescore
  21. 2026-08-05 19:17 UTCEPSS rescore
  22. 2026-08-05 17:30 UTCEG score recompute
  23. 2026-08-05 17:30 UTCGHSA enrichment
  24. 2026-08-05 16:54 UTCEG score recompute
  25. 2026-08-05 16:54 UTCGHSA enrichment
  26. 2026-08-05 06:22 UTCEG score recompute
  27. 2026-08-05 05:34 UTCEG score recompute
  28. 2026-08-05 05:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-8790?
CVE-2026-8790 is a medium vulnerability published on August 5, 2026. The Football Pool plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the shouttext POST parameter of the Shoutbox widget in all versions up to, and including, 2.13.4 due to insufficient input sanitization and output escaping. When a shoutbox form submission fails the nonce…
When was CVE-2026-8790 disclosed?
CVE-2026-8790 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-8790 actively exploited?
CVE-2026-8790 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 87.2% of all scored CVEs.
What is the CVSS score of CVE-2026-8790?
CVE-2026-8790 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-8790?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-8790, 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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