CVE-2021-32305

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 86.7%, top 0% 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 weekWeaponized
9.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 87%
CISA-KEV: Not listedEPSS: 87%CVSS: 9.8Exploit: NoneExposed: 0

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

WebSVN before 2.6.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the search parameter.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
83(Track*)
EG Risk 83/100SSVC: 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
Severity98% × 45%
Exploitation87% × 40%
Automatability30% × 15%
Action: Watch closely — could escalate to Attend.
EPSS
99.7%
KEV
Not listed

Published

May 18, 2021

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Jul 6, 2026
Patch available. Sources: github_pr.
github_pr Patch Available

Prevent shell injection in search.

Patch available: websvnphp/websvn 2.6.1 (PR #142 merged 2021-05-12)

https://github.com/websvnphp/websvn/pull/142

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 14× 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. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 02:00 UTCEG score recompute
  3. 2026-07-22 22:47 UTCEG score recompute
  4. 2026-07-22 14:06 UTCEPSS rescore
  5. 2026-07-22 14:06 UTCEPSS rescore
  6. 2026-07-20 17:05 UTCEPSS rescore
  7. 2026-07-19 02:27 UTCEPSS rescore
  8. 2026-07-18 19:59 UTCOSV refresh
  9. 2026-07-15 16:55 UTCEPSS rescore
  10. 2026-07-13 06:10 UTCEPSS rescore
  11. 2026-07-08 15:12 UTCEPSS rescore
  12. 2026-07-01 03:18 UTCOSV refresh
  13. 2026-06-28 04:54 UTCEPSS rescore
  14. 2026-06-28 04:54 UTCEPSS rescore
  15. 2026-06-24 14:03 UTCEPSS rescore
  16. 2026-06-24 14:03 UTCEPSS rescore
  17. 2026-06-23 21:31 UTCEPSS rescore
  18. 2026-06-23 21:31 UTCEPSS rescore
  19. 2026-06-21 01:58 UTCEPSS rescore
  20. 2026-06-21 01:58 UTCEPSS rescore
  21. 2026-06-17 17:51 UTCEPSS rescore
  22. 2026-06-15 17:46 UTCEPSS rescore
  23. 2026-06-13 05:13 UTCOSV refresh
  24. 2026-06-12 23:10 UTCEPSS rescore
  25. 2026-06-12 23:10 UTCEPSS rescore
Show 14 more
  1. 2026-06-10 13:20 UTCEPSS rescore
  2. 2026-06-08 14:15 UTCEPSS rescore
  3. 2026-06-08 14:15 UTCEPSS rescore
  4. 2026-06-07 15:23 UTCEPSS rescore
  5. 2026-06-07 15:23 UTCEPSS rescore
  6. 2026-06-01 13:50 UTCEPSS rescore
  7. 2026-06-01 13:50 UTCEPSS rescore
  8. 2026-05-29 13:42 UTCEPSS rescore
  9. 2026-05-29 13:42 UTCEPSS rescore
  10. 2026-05-28 13:43 UTCEPSS rescore
  11. 2026-05-28 13:43 UTCEPSS rescore
  12. 2026-05-26 16:25 UTCEG score recompute
  13. 2026-05-26 16:25 UTCGHSA enrichment
  14. 2026-05-26 13:42 UTCEPSS rescore

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-50042✓ verified
    First seen Jun 21, 2021

    Websvn 2.6.0 - Remote Code Execution (Unauthenticated)

    Open source ↗
  • Nucleihttp/cves/2021/CVE-2021-32305.yaml
    First seen Jan 1, 2021

    Websvn <2.6.1 - Remote Code Execution

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2021-32305?
CVE-2021-32305 is a critical vulnerability published on May 18, 2021. WebSVN before 2.6.1 allows remote attackers to execute arbitrary commands via shell metacharacters in the search parameter.
When was CVE-2021-32305 disclosed?
CVE-2021-32305 was first published in the National Vulnerability Database on May 18, 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-2021-32305 actively exploited?
CVE-2021-32305 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 99.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2021-32305?
CVE-2021-32305 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2021-32305?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-32305, 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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