CVE-2020-2036

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 23.9%, top 2% 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
Elevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 24%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

A reflected cross-site scripting (XSS) vulnerability exists in the PAN-OS management web interface. A remote attacker able to convince an administrator with an active authenticated session on the firewall management interface to click on a crafted link to that management web interface could potentially execute arbitrary JavaScript code in the administrator's browser and perform administrative actions. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.16; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
24%
EPSS %ILE
98%
KEV
Not listed

Published

September 9, 2020

Last Modified

November 21, 2024

Advisory Details (1)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

CVE-2020-2036 PAN-OS: Reflected Cross-Site Scripting (XSS) vulnerability in management web interface

https://security.paloaltonetworks.com/CVE-2020-2036

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 25× 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. 2026-08-20 22:52 UTCEPSS rescore
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  24. 2026-07-23 01:50 UTCEG score recompute
  25. 2026-07-22 22:36 UTCEG score recompute
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  1. 2026-07-22 14:05 UTCEPSS rescore
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  69. 2026-05-26 23:22 UTCEG score recompute
  70. 2026-05-26 23:22 UTCGHSA enrichment
  71. 2026-05-23 06:31 UTCOSV refresh

Publicly available exploits

(1 reference)

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

  • Nucleihttp/cves/2020/CVE-2020-2036.yaml
    First seen Jan 1, 2020

    Palo Alto Networks PAN-OS Web Interface - Cross Site-Scripting

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2020-2036?
CVE-2020-2036 is a high vulnerability published on September 9, 2020. A reflected cross-site scripting (XSS) vulnerability exists in the PAN-OS management web interface. A remote attacker able to convince an administrator with an active authenticated session on the firewall management interface to click on a crafted link to that management web interface could…
When was CVE-2020-2036 disclosed?
CVE-2020-2036 was first published in the National Vulnerability Database on September 9, 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-2020-2036 actively exploited?
CVE-2020-2036 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 24% probability of exploitation in the next 30 days, which ranks it in the top 2.3% of all scored CVEs.
What is the CVSS score of CVE-2020-2036?
CVE-2020-2036 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2020-2036?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-2036, 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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