CVE-2018-20151

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-14. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 6%CVSS: 7.5Exploit: None knownExposed: 0

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

In WordPress before 4.9.9 and 5.x before 5.0.1, the user-activation page could be read by a search engine's web crawler if an unusual configuration were chosen. The search engine could then index and display a user's e-mail address and (rarely) the password that was generated by default.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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
Severity75% × 45%
Exploitation7% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
6%
EPSS %ILE
93%
KEV
Not listed

Published

December 14, 2018

Last Modified

November 21, 2024

References (16)

Affected Packages

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
wordpress—5.0.1+dfsg1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
wordpress—5.0.1+dfsg1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
wordpress—5.0.1+dfsg1-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
wordpress—5.0.1+dfsg1-1—
Debian:8(1)
PackageVulnerable rangeFixed inDependents
wordpress4.1+dfsg-1 ... 4.1.1+dfsg-1 (20 versions)4.1.25+dfsg-1+deb8u1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
wordpress4.7.5+dfsg-2 ... 4.7.5+dfsg-2+deb9u4 (7 versions)4.7.5+dfsg-2+deb9u5—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× 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.

Showing the most recent 100 of 119 total refreshes for this CVE.

  1. 2026-08-20 22:51 UTCEPSS rescore
  2. 2026-08-19 17:00 UTCEPSS rescore
  3. 2026-08-18 13:44 UTCEPSS rescore
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  1. 2026-07-23 01:35 UTCEG score recompute
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  3. 2026-07-22 14:05 UTCEPSS rescore
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  5. 2026-07-21 01:17 UTCOSV refresh
  6. 2026-07-20 17:04 UTCEPSS rescore
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  20. 2026-07-08 15:11 UTCEPSS rescore
  21. 2026-07-07 13:42 UTCEPSS rescore
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  23. 2026-07-06 16:24 UTCEPSS rescore
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  25. 2026-07-06 02:20 UTCEPSS rescore
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  27. 2026-07-04 06:28 UTCEPSS rescore
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  29. 2026-07-03 20:56 UTCOSV refresh
  30. 2026-07-02 16:54 UTCEPSS rescore
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  40. 2026-06-25 13:47 UTCEPSS rescore
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  48. 2026-06-21 14:54 UTCEPSS rescore
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  50. 2026-06-21 01:57 UTCEPSS rescore
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  52. 2026-06-19 19:23 UTCEPSS rescore
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  54. 2026-06-18 17:50 UTCEPSS rescore
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  61. 2026-06-15 08:43 UTCOSV refresh
  62. 2026-06-14 23:15 UTCEPSS rescore
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  67. 2026-06-11 13:57 UTCEPSS rescore
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  74. 2026-06-06 13:45 UTCEPSS rescore
  75. 2026-06-06 13:45 UTCEPSS rescore

Frequently asked(5)

What is CVE-2018-20151?
CVE-2018-20151 is a high vulnerability published on December 14, 2018. In WordPress before 4.9.9 and 5.x before 5.0.1, the user-activation page could be read by a search engine's web crawler if an unusual configuration were chosen. The search engine could then index and display a user's e-mail address and (rarely) the password that was generated by default.
When was CVE-2018-20151 disclosed?
CVE-2018-20151 was first published in the National Vulnerability Database on December 14, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-20151 actively exploited?
CVE-2018-20151 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6% probability of exploitation in the next 30 days, which ranks it in the top 7.5% of all scored CVEs.
What is the CVSS score of CVE-2018-20151?
CVE-2018-20151 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2018-20151?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20151, 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.

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