pgAdmin 4 Vulnerable to Cross-Site Scripting (XSS) via Query Result Rendering

Description

pgAdmin <= 9.1 is affected by a security vulnerability with Cross-Site Scripting(XSS). If attackers execute any arbitrary HTML/JavaScript in a user's browser through query result rendering, then HTML/JavaScript runs on the browser.

Basic information

Type
reviewed
Severity
critical
Advisory on GitHub
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Repository advisory
Source code
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Published (advisory)
2025-04-03 15:31:13 UTC
Updated
2025-04-04 14:23:57 UTC
GitHub reviewed
2025-04-04 14:23:53 UTC
NVD published
2025-04-03

EPSS Score

Score Percentile
0.13% 33.50%

CVSS Scores

Base score Version Severity Vector
9.1 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.

Identifiers

CWEs

CWE id Name
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
pip pgadmin4 < 9.2 9.2

References

cvelogic Threat Intelligence