4.2
MEDIUM CVSS 3.0
CVE-2026-109848
GROWI Authorization Bypass Vulnerability
Description

GROWI contains an authorization bypass vulnerability in its tag update API and the page update API due to improper use of a user-controlled key. By exploiting this vulnerability, an attacker who can log in to the product may obtain the contents of pages without the required read permission and save them to pages that the attacker can edit.

INFO

Published Date :

Oct. 28, 2026, 3:17 a.m.

Last Modified :

Oct. 28, 2026, 3:17 a.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-109848 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Weseek growi
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.0 MEDIUM ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 3.0 MEDIUM MITRE-CVE
CVSS 3.0 MEDIUM [email protected]
CVSS 4.0 LOW ede6fdc4-6654-4307-a26d-3331c018e2ce
CVSS 4.0 LOW [email protected]
Solution
Address authorization bypass by validating user-controlled keys in API requests.
  • Validate user-controlled keys in tag update API.
  • Validate user-controlled keys in page update API.
  • Implement proper access controls for all APIs.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-109848.

URL Resource
https://github.com/growilabs/growi/security/advisories/GHSA-pqx5-gx68-83h4
https://growi.co.jp/news/48/
https://jvn.jp/en/jp/JVN51223238/
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-109848 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-109848 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-109848 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-109848 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 28, 2026

    Action Type Old Value New Value
    Added Description GROWI contains an authorization bypass vulnerability in its tag update API and the page update API due to improper use of a user-controlled key. By exploiting this vulnerability, an attacker who can log in to the product may obtain the contents of pages without the required read permission and save them to pages that the attacker can edit.
    Added CVSS V4.0 AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3 AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
    Added CWE CWE-639
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/109xxx/CVE-2026-109848.json">CVE-2026-109848</a>
    Added Reference https://github.com/growilabs/growi/security/advisories/GHSA-pqx5-gx68-83h4
    Added Reference https://growi.co.jp/news/48/
    Added Reference https://jvn.jp/en/jp/JVN51223238/
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.