PYSEC-2026-2866

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Import Source
https://github.com/pypa/advisory-database/blob/main/vulns/pgadmin4/PYSEC-2026-2866.yaml
JSON Data
https://api.osv.dev/v1/vulns/PYSEC-2026-2866
Aliases
Published
2026-07-13T15:15:44.878387Z
Modified
2026-07-13T16:32:56.103923896Z
Severity
  • 4.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • 4.8 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N CVSS Calculator
Summary
pgAdmin 4: Stored cross-site scripting (XSS) vulnerability in Browser Tree and Explain Visualizer modules
Details

Stored cross-site scripting (XSS) vulnerability in pgAdmin 4 Browser Tree and Explain Visualizer modules.

User-controlled PostgreSQL object names (database, schema, table, column, etc.) were assigned to DOM elements via innerHTML, allowing crafted object names containing HTML markup to execute attacker-supplied JavaScript in the browser of any pgAdmin user who navigated to or executed EXPLAIN over the malicious object.

Fix replaces innerHTML with textContent.

This issue affects pgAdmin 4: before 9.15.

References

Affected packages

PyPI / pgadmin4

Package

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
9.15

Affected versions

4.*
4.20
4.22
4.23
4.24
4.25
4.26
4.27
4.28
4.29
4.30
5.*
5.0
5.1
5.2
5.3
5.4
5.5
5.6
5.7
6.*
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
6.10
6.11
6.12
6.13
6.14
6.15
6.16
6.17
6.18
6.19
6.20
6.21
7.*
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
8.*
8.0
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
8.10
8.11
8.12
8.13
8.14
9.*
9.0
9.1
9.2
9.3
9.4
9.5
9.6
9.7
9.8
9.9
9.10
9.11
9.12
9.13
9.14

Database specific

source
"https://github.com/pypa/advisory-database/blob/main/vulns/pgadmin4/PYSEC-2026-2866.yaml"