CVE-2025-48203: typo3 cs seo extension
Vulnerability summary
CVE-2025-48203 is a medium (CVSS 6.4) vulnerability in typo3 cs seo extension. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.1% of scored vulnerabilities.
Not severe (CVSS 6.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 21-05-2025PublishedVulnerability first disclosed.
- 21-05-2025Last modifiedVulnerability information updated.
Description
The cs_seo extension through 9.2.0 for TYPO3 allows XSS.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST6.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.24% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Typo31 product
- cs seo extension≥ 6.3.0, < 6.8.0 | ≥ 7.0.0, < 7.5.0 | ≥ 8.0.0, < 8.4.0 | ≥ 9.0.0, < 9.3.0
1 vendor · 1 product