XSS in Appsmith
CVE-2026-7299
Appsmith’s SQL query editor’s autocomplete functionality fails to sanitize database object names before rendering them in innerHTML, allowing an authenticated Developer to inject persistent XSS by a malicious table or column names triggering arbitrary code execution in the sessions of other workspace members when they interact with the same datasource.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (34.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 34.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Appsmith — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/appsmithorg/appsmith/security/advisories/GHSA-vvxf-f8q9-86gh (Vendor Advisory)
- github.com/appsmithorg/appsmith/pull/41666 (Patch, Issue Tracking, Vendor Advisory)
- github.com/Stuub/Appsmith-1.98-Stored-XSS-Exploit (Exploit, Third Party Advisory)
- github.com/appsmithorg/appsmith/releases/tag/v2.1 (Release Notes)
- github.com/appsmithorg/appsmith/commit/99d69180919981ed9bc5484050d809a5bec68acc (Patch)
- af854a3a-2127-422b-91ae-364da2661108 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2026-7299?
- CVE-2026-7299 is a medium-severity vulnerability in Appsmith, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2026-06-02.
- How severe is CVE-2026-7299?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2026-7299 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.