CVE-2011-5026
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn...
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn GuestBook before 2.4.8d allows remote attackers to inject arbitrary web script or HTML via the name parameter to index.php. NOTE: some of these details are obtained from third party information.
Exploit likelihood
What each source reports
NVD Score used
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn GuestBook before 2.4.8d allows remote attackers to inject arbitrary web script or HTML via the name parameter to index.php. NOTE: some of these details are obtained from third party information.
- Record
CVE-2011-5026- CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn GuestBook before 2.4.8d allows remote attackers to inject arbitrary web script or HTML via the name parameter to index.php. NOTE: some of these details are obtained from third party information.
- Record
CVE-2011-5026- Updated
- 2026-11-02
EUVDEUVD-2011-4931 No score
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn GuestBook before 2.4.8d allows remote attackers to inject arbitrary web script or HTML via the name parameter to index.php. NOTE: some of these details are obtained from third party information.
- Record
EUVD-2011-4931- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-p6cg-c78j-hqmv No score
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn...
Cross-site scripting (XSS) vulnerability in the addPost function in data/functions.php in Winn GuestBook before 2.4.8d allows remote attackers to inject arbitrary web script or HTML via the name parameter to index.php. NOTE: some of these details are obtained from third party information.
- Record
GHSA-p6cg-c78j-hqmv- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Winn Guestbook 2.4.8c - Persistent Cross-Site Scripting | 2011-12-29 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2011-5026 is a medium vulnerability (CVSS 4.3) in Winn Guestbook, published December 29, 2011. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.60%, the 75th percentile. No source names a fixed version.