Vulnerability · Published Apr 15, 2026 · Assigned by jpcert
CVE-2026-26291
Medium 5.4
In plain English
A medium-severity cross-site scripting in GROWI from GROWI, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities).
Severity (CVSS 3.0)5.4Medium
Exploit odds (30 days)0.2%top 92.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Stored cross-site scripting vulnerability exists in GROWI v7.4.6 and earlier. If this vulnerability is exploited, an arbitrary script may be executed in a user's web browser.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| GROWI, Inc. | GROWI | v7.4.6 and earlier |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N