CVE-2019-11831
The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.44%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 5.44% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22, CWE-502
- Affected
- typo3/pharstreamwrapper · debian/debian linux · fedoraproject/fedora · drupal/drupal · joomla/joomla\!
- Source
- cve@mitre.org
EPSS 5.4% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/108302Third Party Advisory, VDB Entry
- https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1Release Notes, Third Party Advisory
- https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00029.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4/
- https://seclists.org/bugtraq/2019/May/36Issue Tracking, Mailing List, Third Party Advisory
- https://typo3.org/security/advisory/typo3-psa-2019-007/Vendor Advisory
- https://www.debian.org/security/2019/dsa-4445Third Party Advisory
- https://www.drupal.org/sa-core-2019-007Third Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_22Third Party Advisory
- http://www.securityfocus.com/bid/108302Third Party Advisory, VDB Entry
- https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1Release Notes, Third Party Advisory
- https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00029.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4/
- https://seclists.org/bugtraq/2019/May/36Issue Tracking, Mailing List, Third Party Advisory
- https://typo3.org/security/advisory/typo3-psa-2019-007/Vendor Advisory
- https://www.debian.org/security/2019/dsa-4445Third Party Advisory
- https://www.drupal.org/sa-core-2019-007Third Party Advisory
- https://www.synology.com/security/advisory/Synology_SA_19_22Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.