6.1
MEDIUM
CVE-2020-6816
Mozilla Bleach RCDATA SVG Math Mutation XSS
Description

In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.

INFO

Published Date :

March 24, 2020, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 5:36 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2020-6816 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-2020-6816 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.

ID Vendor Product Action
1 Fedoraproject fedora
1 Mozilla bleach

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).

None

Updated: 2 years ago
0 stars 0 fork 0 watcher
Born at : Dec. 15, 2022, 9:40 a.m. This repo has been linked 4 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-6816 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-6816 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://advisory.checkmarx.net/advisory/CX-2020-4277
    Added Reference https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743
    Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/
    Added Reference https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Added Reference Mozilla Corporation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/ [No types assigned]
    Removed Reference Mozilla Corporation https://lists.fedoraproject.org/archives/list/[email protected]/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/
  • Modified Analysis by [email protected]

    Oct. 06, 2022

    Action Type Old Value New Value
    Changed Reference Type https://advisory.checkmarx.net/advisory/CX-2020-4277 No Types Assigned https://advisory.checkmarx.net/advisory/CX-2020-4277 Exploit, Third Party Advisory
    Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/ Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 30, 2021

    Action Type Old Value New Value
    Added Reference https://advisory.checkmarx.net/advisory/CX-2020-4277 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 26, 2020

    Action Type Old Value New Value
    Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/ [No Types Assigned]
  • Modified Analysis by [email protected]

    Jul. 22, 2020

    Action Type Old Value New Value
    Changed Reference Type https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach No Types Assigned https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach Exploit, Third Party Advisory
  • CVE Modified by [email protected]

    Jul. 20, 2020

    Action Type Old Value New Value
    Added Reference https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach [No Types Assigned]
  • Initial Analysis by [email protected]

    Mar. 27, 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/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743 No Types Assigned https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743 Third Party Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:mozilla:bleach:*:*:*:*:*:*:*:* versions up to (excluding) 3.1.2
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-6816 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-2020-6816 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.20 }} -0.01%

score

0.57614

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability