CVE-2019-11830: typo3 pharstreamwrapper Deserialization of Untrusted Data
Vulnerability summary
CVE-2019-11830 is a critical (CVSS 9.8) Deserialization of Untrusted Data vulnerability in typo3 pharstreamwrapper. EPSS estimates a 2.67% chance of exploitation in the next 30 days, higher than 85.8% of scored vulnerabilities.
Severe, CVSS 9.8 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 09-05-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
PharMetaDataInterceptor in the PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 mishandles Phar stub parsing, which allows attackers to bypass a deserialization protection mechanism.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.67%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.67% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Typo31 product
- pharstreamwrapper≥ 2.0.0, < 2.1.1 | ≥ 3.0.0, < 3.1.1
1 vendor · 1 product
References
6 links- github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1X Refsource MISCRelease NotesThird Party Advisory
- github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1X Refsource MISCRelease NotesThird Party Advisory