# CVE-2016-20077: WordPress Plugin Photocart Link 1.6 Local File Inclusion via decode.php

> Unauthenticated attackers can read arbitrary files, including database credentials, via local file inclusion in the Photocart Link plugin.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 15 Jun 2026
- **Updated:** 15 Jun 2026
- **Also known as:** GHSA-6x3x-868q-3vjm

## What is CVE-2016-20077?

CVE-2016-20077 is a medium-severity path traversal vulnerability in KaymeePhotography Photocart Link, published on 15 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

WordPress Plugin Photocart Link 1.6 contains a local file inclusion vulnerability that allows unauthenticated attackers to read arbitrary files by exploiting insufficient input validation in decode.php. Attackers can supply base64-encoded file paths in the 'id' parameter to the decode.php endpoint to retrieve sensitive files like wp-config.php containing database credentials and configuration data.

Weakness: CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program)

## Which versions are affected by CVE-2016-20077?


## How do I fix CVE-2016-20077?

No fix has been published for CVE-2016-20077 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-20077 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20077 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-20077 and fix it if it is affected.

What it is: CVE-2016-20077 is a medium-severity path traversal vulnerability in KaymeePhotography Photocart Link, published on 15 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-20077 exists.

Affected product: KaymeePhotography Photocart Link. 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-2016-20077/ (Markdown: https://insights.sbomify.com/CVE-2016-20077/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-20077
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-20077
- OSV: https://osv.dev/vulnerability/CVE-2016-20077

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-20077/
Summaries are generated and may contain mistakes; the official description above is the record.