# CVE-2023-0764: Gallery by BestWebSoft < 4.7.0 - Author+ Stored Cross-Site Scripting

> An attacker with Author privileges can inject malicious scripts into gallery information, potentially compromising other users' sessions.

- **Severity:** Medium 5.4 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 17 Apr 2023
- **Updated:** 6 Feb 2025
- **Also known as:** GHSA-52x4-hjxq-qrcm

## What is CVE-2023-0764?

CVE-2023-0764 is a medium-severity cross-site scripting vulnerability in Unknown Gallery by BestWebSoft, published on 17 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

The Gallery by BestWebSoft WordPress plugin before 4.7.0 does not perform proper sanitization of gallery information, leading to a Stored Cross-Site Scription vulnerability. The attacker must have at least the privileges of the Author role.

## Which versions are affected by CVE-2023-0764?

It affects 1 product.


Products: Bestwebsoft Gallery.

## How do I fix CVE-2023-0764?

No fix has been published for CVE-2023-0764 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-0764 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0764 exists.

## Other vulnerabilities in Unknown Gallery by BestWebSoft

- [CVE-2023-0765](https://insights.sbomify.com/CVE-2023-0765/): Gallery by BestWebSoft < 4.7.0 - Author+ SQL Injection (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-0764 and fix it if it is affected.

What it is: CVE-2023-0764 is a medium-severity cross-site scripting vulnerability in Unknown Gallery by BestWebSoft, published on 17 Apr 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-0764 exists.

Affected product: Unknown Gallery by BestWebSoft. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-0764/ (Markdown: https://insights.sbomify.com/CVE-2023-0764/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-0764
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-0764
- OSV: https://osv.dev/vulnerability/CVE-2023-0764

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-0764/
Summaries are generated and may contain mistakes; the official description above is the record.