CVE-2020-26870
Cure53 DOMPurify DOM Mutation XSS
Description
Cure53 DOMPurify before 2.0.17 allows mutation XSS. This occurs because a serialize-parse roundtrip does not necessarily return the original DOM tree, and a namespace can change from HTML to MathML, as demonstrated by nesting of FORM elements.
INFO
Published Date :
Oct. 7, 2020, 4:15 p.m.
Last Modified :
April 27, 2022, 6:49 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.7
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2020-26870 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-26870
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-26870.
| URL | Resource |
|---|---|
| https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d | Patch Third Party Advisory |
| https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html | Mailing List Third Party Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 | Patch Vendor Advisory |
| https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ | Exploit Third Party Advisory |
| https://www.oracle.com//security-alerts/cpujul2021.html | Patch Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
cve_checklist
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-26870 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-26870 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Apr. 27, 2022
Action Type Old Value New Value Changed Reference Type https://www.oracle.com//security-alerts/cpujul2021.html No Types Assigned https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:* versions up to (excluding) 21.1.0.00.01 -
CVE Modified by [email protected]
Jul. 20, 2021
Action Type Old Value New Value Added Reference https://www.oracle.com//security-alerts/cpujul2021.html [No Types Assigned] -
Modified Analysis by [email protected]
Feb. 25, 2021
Action Type Old Value New Value Changed Reference Type https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 Third Party Advisory https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 Patch, Third Party Advisory Changed Reference Type https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 Patch, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:microsoft:visual_studio_2017:15.9:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2019:16.0:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2019:16.4:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2019:16.7:*:*:*:*:*:*:* *cpe:2.3:a:microsoft:visual_studio_2019:16.8:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 02, 2021
Action Type Old Value New Value Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-26870 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 10, 2020
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 29, 2020
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2020/10/msg00029.html [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 16, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d No Types Assigned https://github.com/cure53/DOMPurify/commit/02724b8eb048dd219d6725b05c3000936f11d62d Patch, Third Party Advisory Changed Reference Type https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 No Types Assigned https://github.com/cure53/DOMPurify/compare/2.0.16...2.0.17 Third Party Advisory Changed Reference Type https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ No Types Assigned https://research.securitum.com/mutation-xss-via-mathml-mutation-dompurify-2-0-17-bypass/ Exploit, Third Party Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:cure53:dompurify:*:*:*:*:*:*:*:* versions up to (excluding) 2.0.17
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-26870 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-26870
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.97 }} 0.12%
score
0.83706
percentile