# CVE-2023-1881: Cross-site Scripting (XSS) - Stored in microweber/microweber

> Stored XSS in Microweber allows attackers to inject malicious scripts, potentially leading to code execution or account takeover.

- **Severity:** High 7.4 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 5 Apr 2023
- **Updated:** 10 Feb 2025
- **Also known as:** GHSA-hhjm-mpmf-cxg9

## What is CVE-2023-1881?

CVE-2023-1881 is a high-severity cross-site scripting vulnerability in Microweber Microweber, published on 5 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Cross-site Scripting (XSS) - Stored in GitHub repository microweber/microweber prior to 1.3.3.

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

## Which versions are affected by CVE-2023-1881?

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


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `microweber/microweber` | Packagist | All versions | 1.3.3 |
| `microweber/microweber` | Packagist | All versions | 1.3.3 |

Products: Microweber Microweber.

## How do I fix CVE-2023-1881?

Upgrade microweber/microweber to 1.3.3 or later.

## Is CVE-2023-1881 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1881 exists.

## Other vulnerabilities in Microweber Microweber

- [CVE-2022-0558](https://insights.sbomify.com/CVE-2022-0558/): Cross-site Scripting (XSS) - Stored in microweber/microweber (critical 9.8)
- [CVE-2020-23138](https://insights.sbomify.com/CVE-2020-23138/): File upload in n/a (critical 9.8)
- [CVE-2022-0688](https://insights.sbomify.com/CVE-2022-0688/): Business Logic Errors in microweber/microweber (critical 9.4)
- [CVE-2022-0660](https://insights.sbomify.com/CVE-2022-0660/): Generation of Error Message Containing Sensitive Information in microweber/microweber (critical 9.4)
- [CVE-2022-0913](https://insights.sbomify.com/CVE-2022-0913/): Integer Overflow or Wraparound in microweber/microweber (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-1881 and fix it if it is affected.

What it is: CVE-2023-1881 is a high-severity cross-site scripting vulnerability in Microweber Microweber, published on 5 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1881 exists.

Affected packages and fixed versions:
- microweber/microweber (Packagist): affected all versions; fixed in 1.3.3
- microweber/microweber (Packagist): affected all versions; fixed in 1.3.3

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-2023-1881/ (Markdown: https://insights.sbomify.com/CVE-2023-1881/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-1881
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-1881
- OSV: https://osv.dev/vulnerability/CVE-2023-1881

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-1881/
Summaries are generated and may contain mistakes; the official description above is the record.