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CVE-2020-26216

21
FAUCET Score

CVE-2020-26216 describes multiple Cross-Site Scripting (XSS) vulnerabilities in TYPO3 Fluid versions prior to 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11, and 2.6.10. These flaws allowed for XSS through maliciously crafted additionalAttributes arrays, unescaped content arguments in specific ViewHelpers, and unescaped then/else arguments in AbstractConditionViewHelper subclasses. The vulnerability has a CVSS score of 6.1 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to low impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.0.8CPE matchmatch criteria
cpe:2.3:a:typo3:fluid:*:*:*:*:*:*:*:*
>= 2.1.0, < 2.1.7CPE matchmatch criteria
cpe:2.3:a:typo3:fluid:*:*:*:*:*:*:*:*
>= 2.2.0, < 2.2.4CPE matchmatch criteria
cpe:2.3:a:typo3:fluid:*:*:*:*:*:*:*:*
>= 2.3.0, < 2.3.7CPE matchmatch criteria
cpe:2.3:a:typo3:fluid:*:*:*:*:*:*:*:*
>= 2.4.0, < 2.4.4CPE matchmatch criteria
cpe:2.3:a:typo3:fluid:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.0HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
5.8
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.03%
Probability of exploitation in next 30 days
EPSS Percentile
60.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0103 is in the 72nd percentile among its peer group of 26,234 CVEs.

Social Chatter

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

Remediation

Patch Available

Vendor Patches (8)

composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.6.10
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.0.8
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.1.7
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.2.4
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.3.7
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.4.4
composerpatch availablevia ghsa
Product: typo3fluid/fluidFixed in: 2.5.11
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-hpjm-3ww5-6cpfhigh

Cross-Site Scripting through Fluid view helper arguments

Nov 18, 2020

References

github.com / TYPO3/Fluid/commit/f20db4e74cf9803c6cffca2ed2f03e1b0b89d0dc
PatchThird Party Advisory
github.com / TYPO3/Fluid/security/advisories/GHSA-hpjm-3ww5-6cpf
ExploitThird Party Advisory
typo3.org / security/advisory/typo3-core-sa-2020-009
ExploitVendor Advisory