CVE-2020-9520

MEDIUMNVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory (severity: LOW) published 2022-05-24. NVD baseline CVSS 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.4Exploit: None knownExposed: 0

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

A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7. The vulnerability could allows a remote attacker to craft and store malicious content into Vibe such that when the content is viewed by another user of the system, attacker controlled JavaScript will execute in the security context of the target user’s browser.

CVSS v3
5.4
EG Score
5.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity54% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
54%
KEV
Not listed

Published

March 25, 2020

Last Modified

November 21, 2024

References (4)

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 26× 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 124 total refreshes for this CVE.

  1. 2026-08-19 17:00 UTCEPSS rescore
  2. 2026-08-18 13:44 UTCEPSS rescore
  3. 2026-08-17 13:43 UTCEPSS rescore
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  1. 2026-07-23 01:55 UTCEG score recompute
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  3. 2026-07-22 14:05 UTCEPSS rescore
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  23. 2026-07-09 19:07 UTCEPSS rescore
  24. 2026-07-08 15:12 UTCEPSS rescore
  25. 2026-07-07 13:43 UTCEPSS rescore
  26. 2026-07-06 16:25 UTCEPSS rescore
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  43. 2026-06-25 13:48 UTCEPSS rescore
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  45. 2026-06-24 14:03 UTCEPSS rescore
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  47. 2026-06-23 21:31 UTCEPSS rescore
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  49. 2026-06-22 14:23 UTCEPSS rescore
  50. 2026-06-21 14:54 UTCEPSS rescore
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  52. 2026-06-21 01:57 UTCEPSS rescore
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  54. 2026-06-19 19:24 UTCEPSS rescore
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  66. 2026-06-11 13:58 UTCEPSS rescore
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  73. 2026-06-06 13:46 UTCEPSS rescore
  74. 2026-06-06 13:46 UTCEPSS rescore
  75. 2026-06-06 13:46 UTCEPSS rescore

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Frequently asked(5)

What is CVE-2020-9520?
CVE-2020-9520 is a medium vulnerability published on March 25, 2020. A stored XSS vulnerability was discovered in Micro Focus Vibe, affecting all Vibe version prior to 4.0.7. The vulnerability could allows a remote attacker to craft and store malicious content into Vibe such that when the content is viewed by another user of the system, attacker controlled…
When was CVE-2020-9520 disclosed?
CVE-2020-9520 was first published in the National Vulnerability Database on March 25, 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-2020-9520 actively exploited?
CVE-2020-9520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 45.8% of all scored CVEs.
What is the CVSS score of CVE-2020-9520?
CVE-2020-9520 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2020-9520?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-9520, 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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