CVE-2021-33570

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 v3.1

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

3.56% chance of exploitation in the next 30 days, 89th percentile

Published

2021-05-25

Updated

2024-08-03

Proof-of-concept exploits (1)

• http://packetstormsecurity.com/files/162831/Postbird-0.8.4-Cross-Site-Scripting-Local-Fil…

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/49910

References

• CVE Record
• NVD entry

Related

• CVE-2021-33564
• CVE-2021-33590
• CVE-2021-33562
• CVE-2021-33617
• CVE-2021-33561
• CVE-2021-33618