# CVE-2019-11556: Cross-site scripting in n/a

> Cross-site scripting in Pagure's blame view allows attackers to execute arbitrary scripts in victim browsers, potentially leading to session hijacking.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 25 Sep 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-678h-c4mf-x2hm, MGASA-2021-0206, openSUSE-SU-2020:1765-1, openSUSE-SU-2020:1810-1

## What is CVE-2019-11556?

CVE-2019-11556 is a medium-severity cross-site scripting vulnerability in Opensuse Backports Sle, published on 25 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Pagure before 5.6 allows XSS via the templates/blame.html blame view.

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

## Which versions are affected by CVE-2019-11556?

It affects 3 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `pagure` | SUSE:Package Hub 15 SP1 | All versions | 5.5-bp151.2.3.1 |
| `pagure` | openSUSE:Leap 15.1 | All versions | 5.5-lp151.2.3.1 |

Products: Opensuse Backports Sle, Opensuse Leap, Redhat Pagure.

## How do I fix CVE-2019-11556?

Upgrade to a fixed version.

## Is CVE-2019-11556 being exploited?

There is no known exploitation of CVE-2019-11556 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Backports Sle

- [CVE-2020-12641](https://insights.sbomify.com/CVE-2020-12641/): Roundcube Webmail Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2020-12640](https://insights.sbomify.com/CVE-2020-12640/): Path traversal in n/a (critical 9.8)
- [CVE-2020-8233](https://insights.sbomify.com/CVE-2020-8233/): Command injection in EdgeSwitch firmware v1.9.0 and prior (high 8.8)
- [CVE-2020-8026](https://insights.sbomify.com/CVE-2020-8026/): inn: non-root owned files (high 8.4)
- [CVE-2020-15229](https://insights.sbomify.com/CVE-2020-15229/): Path traversal and files overwrite with unsquashfs (high 8.2)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-11556 and fix it if it is affected.

What it is: CVE-2019-11556 is a medium-severity cross-site scripting vulnerability in Opensuse Backports Sle, published on 25 Sep 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-11556 in the wild and no public exploit code.

Affected product: Opensuse Backports Sle. 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-2019-11556/ (Markdown: https://insights.sbomify.com/CVE-2019-11556/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-11556
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-11556
- OSV: https://osv.dev/vulnerability/CVE-2019-11556

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-11556/
Summaries are generated and may contain mistakes; the official description above is the record.