CVE-2020-13667

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.9%, top 43% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 1%CVSS: 5.3Exploit: NoneExposed: 0

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

Access bypass vulnerability in of Drupal Core Workspaces allows an attacker to access data without correct permissions. The Workspaces module doesn't sufficiently check access permissions when switching workspaces, leading to an access bypass vulnerability. An attacker might be able to see content before the site owner intends people to see the content. This vulnerability is mitigated by the fact that sites are only vulnerable if they have installed the experimental Workspaces module. This issue affects Drupal Core8.8.X versions prior to 8.8.10; 8.9.X versions prior to 8.9.6; 9.0.X versions prior to 9.0.6.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
56.8%
KEV
Not listed

Published

May 17, 2021

Last Modified

November 21, 2024

References (2)

Affected Packages

(2 across 1 ecosystem)
Packagist(2)
PackageVulnerable rangeFixed inDependents
drupal/core9.0.0 ... 9.0.5 (6 versions)9.0.6—
drupal/drupal9.0.0 ... 9.0.5 (6 versions)9.0.6—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 44× 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. 2026-07-22 22:34 UTCEG score recompute
  2. 2026-07-22 14:05 UTCEPSS rescore
  3. 2026-07-21 15:22 UTCEPSS rescore
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  10. 2026-07-18 20:29 UTCOSV refresh
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  1. 2026-07-05 02:27 UTCEPSS rescore
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  5. 2026-07-01 03:18 UTCOSV refresh
  6. 2026-06-30 23:20 UTCEPSS rescore
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  37. 2026-06-13 22:58 UTCEPSS rescore
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  39. 2026-06-13 05:43 UTCOSV refresh
  40. 2026-06-12 23:09 UTCEPSS rescore
  41. 2026-06-11 13:58 UTCEPSS rescore
  42. 2026-06-10 22:16 UTCEPSS rescore
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  44. 2026-06-10 13:20 UTCEPSS rescore
  45. 2026-06-08 14:15 UTCEPSS rescore
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  68. 2026-05-27 13:39 UTCEPSS rescore
  69. 2026-05-26 16:30 UTCEG score recompute
  70. 2026-05-26 13:42 UTCEPSS rescore
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  72. 2026-05-26 07:17 UTCEPSS rescore
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Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-13667?
CVE-2020-13667 is a medium vulnerability published on May 17, 2021. Access bypass vulnerability in of Drupal Core Workspaces allows an attacker to access data without correct permissions. The Workspaces module doesn't sufficiently check access permissions when switching workspaces, leading to an access bypass vulnerability. An attacker might be able to see content…
When was CVE-2020-13667 disclosed?
CVE-2020-13667 was first published in the National Vulnerability Database on May 17, 2021, 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-2020-13667 actively exploited?
CVE-2020-13667 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-13667?
CVE-2020-13667 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2020-13667?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-13667, 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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