VulnerabilityModified
CVE-2021-33570
Postbird 0.8.4 allows stored XSS via the onerror attribute of an IMG element in any PostgreSQL database table.
MEDIUM 5.4EPSS 3.56%
Does this matter?
Lower severity and a low EPSS score (3.56%). Track it; it rarely justifies an emergency change on its own.
Description
Postbird 0.8.4 allows stored XSS via the onerror attribute of an IMG element in any PostgreSQL database table. This can result in reading local files via vectors involving XMLHttpRequest and open of a file:/// URL, or discovering PostgreSQL passwords via vectors involving Window.localStorage and savedConnections.
- CVSS 3.1
- 5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 3.56% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- postbird project/postbird
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/162831/Postbird-0.8.4-Cross-Site-Scripting-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162872/Postbird-0.8.4-XSS-LFI-Insecure-Data-Storage.htmlThird Party Advisory, VDB Entry
- https://github.com/Paxa/postbird/issues/132Issue Tracking, Third Party Advisory
- https://github.com/Paxa/postbird/issues/133Issue Tracking, Third Party Advisory
- https://github.com/Paxa/postbird/issues/134Issue Tracking, Third Party Advisory
- https://github.com/Tridentsec-io/postbirdExploit, Third Party Advisory
- https://tridentsec.io/blogs/postbird-cve-2021-33570/Broken Link, Third Party Advisory, URL Repurposed
- https://www.exploit-db.com/exploits/49910Exploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162831/Postbird-0.8.4-Cross-Site-Scripting-Local-File-Inclusion.htmlExploit, Third Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/162872/Postbird-0.8.4-XSS-LFI-Insecure-Data-Storage.htmlThird Party Advisory, VDB Entry
- https://github.com/Paxa/postbird/issues/132Issue Tracking, Third Party Advisory
- https://github.com/Paxa/postbird/issues/133Issue Tracking, Third Party Advisory
- https://github.com/Paxa/postbird/issues/134Issue Tracking, Third Party Advisory
- https://github.com/Tridentsec-io/postbirdExploit, Third Party Advisory
- https://tridentsec.io/blogs/postbird-cve-2021-33570/Broken Link, Third Party Advisory, URL Repurposed
- https://www.exploit-db.com/exploits/49910Exploit, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.