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HIGH severity

CVE-2026-10830 — WordPress

HIGH

CVE-2026-10830 is a high-severity (CVSS 8.8) vulnerability. No vendor fix is recorded yet; mitigation options are listed below.

The AllCoach WordPress plugin before 1.0.2 does not verify that an email address submitted to a public account-registration endpoint is not already associated with an existing user…

Published
Jul 6, 2026
Updated
Jul 6, 2026
Affected
—
Patched
—
Exploits
None indexed
Exploitation data as of Sep 29, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • A successful exploit gives an attacker total control of the affected component, not partial access.
  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-10830.

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs35th percentile — riskier than 35% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2026-10830 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 380,526 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Description

The AllCoach WordPress plugin before 1.0.2 does not verify that an email address submitted to a public account-registration endpoint is not already associated with an existing user before overwriting that user's password, allowing unauthenticated attackers to reset the password of arbitrary accounts, including administrators, and take over the site.

Detection & mitigation playbook

Vulnerability
  1. Detect

    Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).

  2. Remediation status

    No fixed release is recorded for CVE-2026-10830 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.

  3. Mitigate without a patch

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

The AllCoach WordPress plugin before 1.0.2 does not verify that an email address submitted to a public account-registration endpoint is not already associated with an existing user before overwriting that user's password, allowing unauthenticated attackers to reset the password of arbitrary accounts, including administrators, and take over the site.
O3 Security · Impact-Aware SCA

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CVE-2026-10830: WordPress (High 8.8) | O3 Security