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CVE-2020-35129

22
FAUCET Score

CVE-2020-35129 is a stored Cross-Site Scripting (XSS) vulnerability affecting Mautic versions prior to 3.2.4. An authenticated attacker with access to the Social Monitoring feature can inject malicious JavaScript, potentially compromising other users, including administrators. This critical vulnerability (CVSS 9.0) allows for high impact, including account takeover, password changes, and privilege escalation from a low-privileged user to an administrator. There is currently no public exploit intelligence, active exploitation, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.4CPE matchmatch criteria
cpe:2.3:a:mautic:mautic:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.0CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.3
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 69th percentile among its peer group of 265 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.6 Bluesky, 0.3 Mastodon, and 1.6 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: mautic/coreFixed in: 3.2.4

Vendor Advisories (1)

composerGHSA-3px5-wjh3-9x6rcritical

Mautic stored Cross-site Scripting (XSS)

May 24, 2022

References

forum.mautic.org / c/announcements/16
Vendor Advisory
labs.bishopfox.com / advisories/mautic-version-3.2.2
Third Party Advisory