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CVE-2020-11023

In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This pro…

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In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.
CVSS 6.9 (MEDIUM) KEV: KNOWN CATALOG

Attention and evidence

HYPE SCORE
1.6/10
REALITY · THREAT PRIORITY
8.5/10
General review priority; not probability

Evidence confidence: Exploitation recorded

Why this priority?
  • Recorded exploitation baseline: +7.00
  • Technical severity: CVSS 6.9: +1.04
  • Fresh EPSS: 84.89%: +0.42

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

Sources: 5 documents and public datasets.

Hype components

Headline sample (25%)
50/100
Press, 30 days (60%)
5/100
Grounded branding (15%)
0/100
HYPE TOTAL16/100

Sources and documents

Knoxville News Sentinel
Press · 29 Oct 2026, 07:00 · jQuery Versions Linked to Known Security Flaws Detected On 40 Of 84 Japanese Websites Scanned - Knoxville News Sentinel
SC Media
Press · 26 Feb 2026, 08:00 · Open-source vulnerabilities per codebase surge by 107% - SC Media
Security Magazine
Press · 25 Feb 2025, 08:00 · Open source software vulnerabilities found in 86% of codebases - Security Magazine
The Hacker News
Press · 24 Jan 2025, 08:00 · CISA Adds Five-Year-Old jQuery XSS Flaw to Exploited Vulnerabilities List - The Hacker News
SecurityWeek
Press · 24 Jan 2025, 08:00 · CISA Warns of Old jQuery Vulnerability Linked to Chinese APT - SecurityWeek

Score evolution

● Hype   ● Reality

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

First record: hype 1.6 · reality 8.5 (2026-11-02 15:12). The curve appears once the score changes.

Public exploit evidence

2

Public exploit entries / repo candidates

See 2 repos with metrics
RepositoryStarsForksLanguageUpdated
Cybernegro/CVE-2020-1102340—03 Jan 2024, 02:40
paktiko1986/pocpoc_bypass_cve_2020-1102300HTML03 Oct 2025, 06:09
Public exploit evidence
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 6.9; EPSS 84.9%
Attention, last 30 days
1 distinct story titles; 1 press documents; 1 publisher domains.
Technical potential
network access, no prior privileges, user interaction, additional attack conditions.
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
29 Apr 2020, 00:00
Added to the CISA KEV catalog
23 Jan 2025, 00:00
First press mention
24 Jan 2025, 08:00
Latest press mention
29 Oct 2026, 07:00
Score calculated
05 Nov 2026, 13:58
PoCs on GitHub
2 repositories