CVE-2021-35043

Name: CVE-2021-35043
Creator: NVD / NIST
Published: 2021-07-19T15:15:07.747+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.51%

Last modified Jun 17, 2026

CVE-2021-35043 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. OWASP AntiSamy before 1.6.4 allows XSS via HTML attributes when using the HTML output serializer (XHTML is not affected). This was demonstrated by a javascript: URL with &#00058 as the replacement for the : character.. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

OWASP AntiSamy before 1.6.4 allows XSS via HTML attributes when using the HTML output serializer (XHTML is not affected). This was demonstrated by a javascript: URL with &#00058 as the replacement for the : character.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.51%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Antisamy Project	Antisamy	< 1.6.4
Oracle	Retail Back Office	14.0
Oracle	Retail Back Office	14.1
Oracle	Retail Central Office	14.0
Oracle	Retail Central Office	14.1
Oracle	Retail Returns Management	14.0
Oracle	Retail Returns Management	14.1
Oracle	Banking Enterprise Default Management	2.6.2
Oracle	Banking Enterprise Default Management	2.7.0
Oracle	Banking Enterprise Default Management	2.7.1
Oracle	Banking Enterprise Default Management	2.10.0
Oracle	Banking Enterprise Default Management	2.12.0
Oracle	Banking Enterprise Default Managment	>= 2.3.0, <= 2.4.0
Oracle	Banking Party Management	2.7.0
Oracle	Banking Platform	>= 2.3.0, <= 2.4.1
Oracle	Banking Platform	2.6.2
Oracle	Banking Platform	2.7.0
Oracle	Banking Platform	2.7.1
Oracle	Insurance Policy Administration	11.0.2
Oracle	Insurance Policy Administration	11.1.0
Oracle	Insurance Policy Administration	11.2.8
Oracle	Insurance Policy Administration	11.3.0
Oracle	Insurance Policy Administration	11.3.1
Oracle	Middleware Common Libraries And Tools	12.2.1.3.0
Oracle	Middleware Common Libraries And Tools	12.2.1.4.0
Netapp	Active Iq Unified Manager	All versions

References

https://github.com/nahsra/antisamy/pull/87Patch, Third Party Advisory
https://github.com/nahsra/antisamy/releases/tag/v1.6.4Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory
https://github.com/nahsra/antisamy/pull/87Patch, Third Party Advisory
https://github.com/nahsra/antisamy/releases/tag/v1.6.4Patch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2021.htmlPatch, Third Party Advisory

Timeline

Published: Jul 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-35043?

How severe is CVE-2021-35043?

CVE-2021-35043 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.

How do I fix CVE-2021-35043?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-35043?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST