CVE-2026-87831

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-09-17. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

The Checkout Field Manager (Checkout Manager) for WooCommerce WordPress plugin before 7.9.7 does not properly validate the ownership of an attachment before deleting it, allowing any authenticated user such as a customer to delete arbitrary media attachments belonging to other users.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 18, 2026

Advisory Details (1)

Auto-updated Sep 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Checkout Field Manager < 7.9.7 – Subscriber+ Arbitrary Attachment Deletion via Customer Address Custom Field | CVE 2026-87831 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/7a871164-ce44-4e4c-8e15-15daa84767c6/

Vendor Advisories for CVE-2026-87831(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 19× in last 7d / 27× 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. 2026-09-24 14:40 UTCEG score recompute
  2. 2026-09-24 14:40 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-23 15:25 UTCGHSA enrichment
  6. 2026-09-22 16:11 UTCEG score recompute
  7. 2026-09-22 16:11 UTCGHSA enrichment
  8. 2026-09-22 16:01 UTCEPSS rescore
  9. 2026-09-21 21:09 UTCEPSS rescore
  10. 2026-09-21 16:57 UTCEG score recompute
  11. 2026-09-21 16:57 UTCGHSA enrichment
  12. 2026-09-20 20:16 UTCEPSS rescore
  13. 2026-09-20 17:42 UTCGHSA enrichment
  14. 2026-09-19 18:28 UTCEG score recompute
  15. 2026-09-19 18:28 UTCGHSA enrichment
  16. 2026-09-18 19:28 UTCEPSS rescore
  17. 2026-09-18 19:14 UTCGHSA enrichment
  18. 2026-09-18 12:36 UTCEG score recompute
  19. 2026-09-18 12:36 UTCGHSA enrichment
  20. 2026-09-17 19:32 UTCEPSS rescore
  21. 2026-09-17 13:21 UTCEG score recompute
  22. 2026-09-17 13:21 UTCGHSA enrichment
  23. 2026-09-17 12:53 UTCEG score recompute
  24. 2026-09-17 12:52 UTCGHSA enrichment
  25. 2026-09-17 08:29 UTCEG score recompute
Show 2 more
  1. 2026-09-17 07:59 UTCEG score recompute
  2. 2026-09-17 07:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-87831?
CVE-2026-87831 is a medium vulnerability published on September 17, 2026. The Checkout Field Manager (Checkout Manager) for WooCommerce WordPress plugin before 7.9.7 does not properly validate the ownership of an attachment before deleting it, allowing any authenticated user such as a customer to delete arbitrary media attachments belonging to other users.
When was CVE-2026-87831 disclosed?
CVE-2026-87831 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-87831 actively exploited?
CVE-2026-87831 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 84.9% of all scored CVEs.
What is the CVSS score of CVE-2026-87831?
CVE-2026-87831 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-87831?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-87831, 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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