6.1

CVE-2021-32768: Cross-Site Scripting via Rich-Text Content

Modified
Published 10-08-2021Last modified 03-08-2024

Vulnerability summary

CVE-2021-32768 is a medium (CVSS 6.1) vulnerability in typo3. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.1, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.73%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 10-08-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In affected versions failing to properly parse, sanitize and encode malicious rich-text content, the content rendering process in the website frontend is vulnerable to cross-site scripting. Corresponding rendering instructions via TypoScript functionality HTMLparser does not consider all potentially malicious HTML tag & attribute combinations per default. In default scenarios, a valid backend user account is needed to exploit this vulnerability. In case custom plugins used in the website frontend accept and reflect rich-text content submitted by users, no authentication is required. Update to TYPO3 versions 7.6.53 ELTS, 8.7.42 ELTS, 9.5.29, 10.4.19, 11.3.2 that fix the problem described.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.73% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Typo32 products
  • typo3≥ 7.0.0, ≤ 7.6.52 | ≥ 8.0.0, ≤ 8.7.41 | ≥ 9.0.0, ≤ 9.5.28 | ≥ 10.0.0, ≤ 10.4.18 | ≥ 11.0.0, ≤ 11.3.1
  • typo3.cms≥ 7.0.0, < 7.6.53 | ≥ 8.0.0, < 8.7.42 | ≥ 9.0.0, < 9.5.29 | ≥ 10.0.0, < 10.4.19 | ≥ 11.0.0, < 11.3.2

1 vendor · 2 products

References

2 links