# CVE-2019-11018: ThinkAdmin Administrator cookies still working after password change

> Attackers can maintain administrator access after a password change because old session cookies remain valid in ThinkAdmin.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Apr 2019
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-qv5j-rwq3-m823

## What is CVE-2019-11018?

CVE-2019-11018 is a critical authentication bypass vulnerability in n/a, published on 8 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

application\admin\controller\User.php in ThinkAdmin V4.0 does not prevent continued use of an administrator's cookie-based credentials after a password change.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2019-11018?

2 open source packages ship an affected version, including zoujingli/thinkadmin. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `zoujingli/thinkadmin` | Packagist | All versions | None |
| `zoujingli/thinkadmin` | Packagist | All versions | None |

Products: Thinkadmin Thinkadmin.

## How do I fix CVE-2019-11018?

No fix has been published for CVE-2019-11018 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-11018 being exploited?

There is no known exploitation of CVE-2019-11018 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-23653](https://insights.sbomify.com/CVE-2020-23653/): ThinkAdmin insecure unserialize vulnerability (critical 9.8)
- [CVE-2023-48965](https://insights.sbomify.com/CVE-2023-48965/): File upload in n/a (high 8.8)
- [CVE-2023-48966](https://insights.sbomify.com/CVE-2023-48966/): ThinkAdmin arbitrary file upload vulnerability (high 8.8)
- [CVE-2020-35296](https://insights.sbomify.com/CVE-2020-35296/): ThinkAdmin Admin Panel Access using Default Credentials (high 7.5)
- [CVE-2020-25540](https://insights.sbomify.com/CVE-2020-25540/): ThinkAdmin directory traversal vulnerability (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-11018 and fix it if it is affected.

What it is: CVE-2019-11018 is a critical authentication bypass vulnerability in n/a, published on 8 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-11018 in the wild and no public exploit code.

Affected packages and fixed versions:
- zoujingli/thinkadmin (Packagist): affected all versions; no fix listed
- zoujingli/thinkadmin (Packagist): affected all versions; no fix listed

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-2019-11018/ (Markdown: https://insights.sbomify.com/CVE-2019-11018/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-11018
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-11018
- OSV: https://osv.dev/vulnerability/CVE-2019-11018

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-11018/
Summaries are generated and may contain mistakes; the official description above is the record.