# CVE-2026-15532: SourceCodester Online Book Store System User Management cross site scripting

> Remote attackers can inject malicious scripts via the User Management module's Name/Username fields, potentially compromising user sessions.

- **Severity:** Medium 4.8 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 13 Jul 2026
- **Updated:** 13 Jul 2026
- **Also known as:** GHSA-m89g-6gv4-875j

## What is CVE-2026-15532?

CVE-2026-15532 is a medium-severity cross-site scripting vulnerability in SourceCodester Online Book Store System, published on 13 Jul 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

A vulnerability was identified in SourceCodester Online Book Store System 1.0. This issue affects some unknown processing of the component User Management Module. Such manipulation of the argument Name/Username leads to cross site scripting. The attack can be executed remotely. The exploit is publicly available and might be used.

Weakness: CWE-94 (Improper Control of Generation of Code), CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-15532?


## How do I fix CVE-2026-15532?

No fix has been published for CVE-2026-15532 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-15532 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15532 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-15532 and fix it if it is affected.

What it is: CVE-2026-15532 is a medium-severity cross-site scripting vulnerability in SourceCodester Online Book Store System, published on 13 Jul 2026. An attacker needs administrator access to exploit it, 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-2026-15532 exists.

Affected product: SourceCodester Online Book Store System. 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-2026-15532/ (Markdown: https://insights.sbomify.com/CVE-2026-15532/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-15532
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-15532
- OSV: https://osv.dev/vulnerability/CVE-2026-15532

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-15532/
Summaries are generated and may contain mistakes; the official description above is the record.