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CVE-2020-11023

Potential XSS vulnerability in jQuery

Medium6.9Known exploitedPublic exploitEPSS 84.9%
Published
Updated
Reserved
Assigned by
GitHub_M

Description

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.

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as JQuery Cross-Site Scripting (XSS) Vulnerability.

Added
23 Jan 2025
Fix due (US federal)
13 Feb 2025
Used by ransomware
Not known

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: it is being exploited.

Timeline

  1. ID reserved

    By GitHub_M

  2. · 30 days later

    Published

  3. · 5 years later

    Added to CISA KEV

    Known exploited in the wild

  4. · 9 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2020-11023, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)3.1Medium6.9CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
NVDNVD · Analyzed3.1Medium6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
84.9% · top 0.3% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.

Weakness

Affected products

Affected packages

From reviewed advisories of the GitHub Advisory Database.

References (67)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2020-11023 badge
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Record last updated .