# CVE-2026-13605: Photo Swipe <= 4.1.1.1 - Author+ Stored XSS via title Attribute

> Authenticated authors can inject JavaScript via link titles, leading to XSS and potential admin account takeover in the PhotoSwipe WordPress plugin.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H`)
- **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:** 29 Jul 2026
- **Updated:** 29 Jul 2026
- **Also known as:** GHSA-frxw-gm92-m8v8

## What is CVE-2026-13605?

CVE-2026-13605 is a medium-severity cross-site scripting vulnerability in Unknown PhotoSwipe, published on 29 Jul 2026. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

### Official description

The PhotoSwipe WordPress plugin through 4.1.1.1 uses the title attribute of author-supplied link markup as a lightbox caption that is written into the page DOM without escaping. Because the title attribute survives the post-content sanitization applied to users who lack the unfiltered_html capability, an authenticated user with Author-level access can store a JavaScript payload that executes in the browser of any visitor, including an administrator, who clicks the link.

Weakness: CWE-79 (Improper Neutralization of Input During Web Page Generation)

## Which versions are affected by CVE-2026-13605?


## How do I fix CVE-2026-13605?

No fix has been published for CVE-2026-13605 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-13605 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13605 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-13605 and fix it if it is affected.

What it is: CVE-2026-13605 is a medium-severity cross-site scripting vulnerability in Unknown PhotoSwipe, published on 29 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-2026-13605 exists.

Affected product: Unknown PhotoSwipe. 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-2026-13605/ (Markdown: https://insights.sbomify.com/CVE-2026-13605/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-13605
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-13605
- OSV: https://osv.dev/vulnerability/CVE-2026-13605

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-13605/
Summaries are generated and may contain mistakes; the official description above is the record.