CVE-2020-8637

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 2.9%, top 14% 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 3%CVSS: 9.8Exploit: None knownExposed: 0

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

A SQL injection vulnerability in TestLink 1.9.20 allows attackers to execute arbitrary SQL commands in dragdroptreenodes.php via the node_id parameter.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: 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%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
3%
EPSS %ILE
86%
KEV
Not listed

Published

April 3, 2020

Last Modified

November 21, 2024

Advisory Details (2)

Auto-updated Aug 15, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit d99bd8277d38 (TestLinkOpenSourceTRMS/testlink-code)

Fix landed in TestLinkOpenSourceTRMS/testlink-code commit d99bd8277d38 — awaiting tagged release

https://github.com/TestLinkOpenSourceTRMS/testlink-code/commit/d99bd8277d384f3417e917ce20bef5d061110343
generic

Testlink 1.9.20: Unrestricted file upload and SQL injection - Ackcent

https://ackcent.com/blog/testlink-1.9.20-unrestricted-file-upload-and-sql-injection/

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× 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 126 total refreshes for this CVE.

  1. 2026-08-21 01:09 UTCOSV refresh
  2. 2026-08-19 17:00 UTCEPSS rescore
  3. 2026-08-18 13:44 UTCEPSS rescore
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  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 01:55 UTCEG score recompute
  3. 2026-07-22 22:41 UTCEG score recompute
  4. 2026-07-22 14:05 UTCEPSS rescore
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  9. 2026-07-19 15:29 UTCOSV refresh
  10. 2026-07-19 14:28 UTCEPSS rescore
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  25. 2026-07-09 19:07 UTCEPSS rescore
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  36. 2026-07-02 02:47 UTCOSV refresh
  37. 2026-07-01 15:03 UTCEPSS rescore
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  62. 2026-06-14 05:43 UTCOSV refresh
  63. 2026-06-13 22:58 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2020-8637?
CVE-2020-8637 is a critical vulnerability published on April 3, 2020. A SQL injection vulnerability in TestLink 1.9.20 allows attackers to execute arbitrary SQL commands in dragdroptreenodes.php via the node_id parameter.
When was CVE-2020-8637 disclosed?
CVE-2020-8637 was first published in the National Vulnerability Database on April 3, 2020, 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-2020-8637 actively exploited?
CVE-2020-8637 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3% probability of exploitation in the next 30 days, which ranks it in the top 14.0% of all scored CVEs.
What is the CVSS score of CVE-2020-8637?
CVE-2020-8637 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2020-8637?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-8637, 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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