CVE-2020-10199

Sonatype Nexus Repository before 3.21.2 allows JavaEL Injection (issue 1 of 2).

CVSS 8.8 (HIGH) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE

0.0/10

REALITY · THREAT PRIORITY

8.8/10

General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?

Recorded exploitation baseline: +7.00
Technical severity: CVSS 8.8: +1.32
Fresh EPSS: 99.06%: +0.50

General review priority, not probability, victim count or asset-specific risk. A range covers missing CVSS/EPSS inputs within the current evidence state.

Sources: 2 documents and public datasets.

Hype components

Headline sample (25%)

0/100

Press, 30 days (60%)

0/100

Grounded branding (15%)

0/100

HYPE TOTAL0/100

Sources and documents

Hacker News

Press · 13 Sep 2020, 14:11 · Apache Cocoon Security Vulnerability CVE-2020-11991

Hacker News

Press · 01 Jul 2020, 20:42 · CVE-2020-11996 Apache Tomcat HTTP/2 Denial of Service

Score evolution

● Hype ● Reality

Earlier evidence-support scores are retained in history; this chart shows only the current priority definition.

First record: hype 0.0 · reality 8.8 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

Public exploit entries / repo candidates

See 5 repos with metrics

Repository	Stars	Forks	Language	Updated
zhzyker/exphub	4,293	1,078	Python	04 Apr 2021, 09:13
zhzyker/CVE-2020-10199_POC-EXP	43	13	Python	26 May 2020, 10:23
magicming200/CVE-2020-10199_CVE-2020-10204	25	9	—	12 Apr 2020, 13:38
wsfengfan/CVE-2020-10199-10204	19	6	Python	07 Apr 2020, 13:56
am-hotstuff819/cve-watch	0	0	TypeScript	12 Oct 2026, 04:56

Public exploit evidence

exploitdb #48343 2020-04-17
exploitdb #49385 2021-01-06

Evidence context and dated references

Reality is general threat/review priority, combining observed exploitation, CVSS severity and fresh EPSS. Evidence confidence is separate. This is not calibrated risk, a victim count or an asset-specific assessment. A range reflects missing numeric inputs.

Evidence in context

Confidence in exploitation evidence: Exploitation recorded
Priority basis: Recorded exploitation; CVSS 8.8; EPSS 99.1%
Attention, last 30 days: 0 distinct story titles; 0 press documents; 0 publisher domains.
Technical potential: network access, low privileges, no user interaction.
Observed activity: Exploitation recorded in CISA KEV.
Known scale: Not quantified.
Evidence confidence basis: Trusted exploitation confirmation

Score evaluated: 2026-11-05 13:58:12.189153+00:00 · EPSS snapshot: 2026-11-05T12:03:04Z

Source event timeline

Published

01 Apr 2020, 18:27

First press mention

01 Jul 2020, 20:42

Latest press mention

13 Sep 2020, 14:11

Added to the CISA KEV catalog

03 Nov 2021, 00:00

Score calculated

05 Nov 2026, 13:58

PoCs on GitHub

5 repositories