CVE-2021-23445: Cross-site Scripting (XSS)
Vulnerability summary
CVE-2021-23445 is a medium (CVSS 6.1) vulnerability in datatables datatables.net. EPSS estimates a 1.98% chance of exploitation in the next 30 days, higher than 80.5% of scored vulnerabilities. 3 public exploits are recorded.
Not severe (CVSS 3.1, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3Timeline
- 27-09-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
This affects the package datatables.net before 1.11.3. If an array is passed to the HTML escape entities function it would not have its contents escaped.
CVSS metrics
6 scores · 5 sources · 2 versions- CVE.orgCNA3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:PDiffers
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- OSV · NpmEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
1.98%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.98% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
3 foundExploit Reference (snyk.io)
Maturity: unknown
Exploit Reference (snyk.io)
Maturity: unknown
Exploit Reference (snyk.io)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Datatables1 product
- datatables.net< 1.11.3
Debian1 product
- datatables.js< 1.10.19+dfsg-1+deb10u1 | < 1.10.21+dfsg-3
Npm1 product
- datatables.net< 1.11.3
Ubuntu1 product
- datatables.jsAll versions (No fix recorded)
4 vendors · 4 products
References
14 links- github.com/DataTables/Dist-DataTables/commit/59a8d3f8a3c1138ab08704e783bc52bfe88d7c9bREPORTWEBPatchThird Party Advisory
