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CVE-2020-11064

15
FAUCET Score

CVE-2020-11064 is a cross-site scripting (XSS) vulnerability affecting TYPO3 CMS versions 9.0.0 through 9.5.16 and 10.0.0 through 10.4.1, where HTML placeholder attributes can be manipulated. This medium-severity vulnerability (CVSS 5.4) requires a valid backend user account for exploitation and could lead to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 9.0.0, < 9.5.17CPE matchmatch criteria
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*
>= 10.0.0, < 10.4.2CPE matchmatch criteria
cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.54%
Probability of exploitation in next 30 days
EPSS Percentile
42.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0054 is in the 67th percentile among its peer group of 15,239 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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (4)

composerpatch availablevia ghsa
Product: typo3/cms-coreFixed in: 9.5.17
composerpatch availablevia ghsa
Product: typo3/cms-coreFixed in: 10.4.2
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 10.4.2
composerpatch availablevia ghsa
Product: typo3/cmsFixed in: 9.5.17

Vendor Advisories (1)

composerGHSA-43gj-mj2w-wh46medium

Cross-Site Scripting in TYPO3 CMS Form Engine

May 13, 2020

References

github.com / TYPO3/TYPO3.CMS/security/advisories/GHSA-43gj-mj2w-wh46
Third Party Advisory