# CVE-2020-9781: Security feature bypass in iOS

> Attackers can trick users into granting website permissions to unintended sites by exploiting permission prompt handling after navigation.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 1 Apr 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-jh47-734f-wqhr

## What is CVE-2020-9781?

CVE-2020-9781 is a medium-severity vulnerability in Apple Ipados, published on 1 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The issue was addressed by clearing website permission prompts after navigation. This issue is fixed in iOS 13.4 and iPadOS 13.4. A user may grant website permissions to a site they didn't intend to.

Weakness: CWE-281 (Improper Preservation of Permissions)

## Which versions are affected by CVE-2020-9781?

It affects 2 products.


Products: Apple Ipados, Apple Iphone Os.

## How do I fix CVE-2020-9781?

No fix has been published for CVE-2020-9781 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-9781 being exploited?

There is no known exploitation of CVE-2020-9781 in the wild and no public exploit code.

## Other vulnerabilities in Apple Ipados

- [CVE-2025-43300](https://insights.sbomify.com/CVE-2025-43300/): Apple iOS, iPadOS, and macOS Out-of-Bounds Write (critical 10.0, exploited in the wild)
- [CVE-2025-24201](https://insights.sbomify.com/CVE-2025-24201/): Apple Multiple Products WebKit Out-of-Bounds Write (critical 10.0, exploited in the wild)
- [CVE-2025-24085](https://insights.sbomify.com/CVE-2025-24085/): Apple Multiple Products Use-After-Free (critical 10.0, exploited in the wild)
- [CVE-2025-31200](https://insights.sbomify.com/CVE-2025-31200/): Apple Multiple Products Memory Corruption (critical 9.8, exploited in the wild)
- [CVE-2025-31201](https://insights.sbomify.com/CVE-2025-31201/): Apple Multiple Products Arbitrary Read and Write (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-9781 and fix it if it is affected.

What it is: CVE-2020-9781 is a medium-severity vulnerability in Apple Ipados, published on 1 Apr 2020. 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-2020-9781 in the wild and no public exploit code.

Affected product: Apple Ipados. 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-2020-9781/ (Markdown: https://insights.sbomify.com/CVE-2020-9781/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-9781
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-9781
- OSV: https://osv.dev/vulnerability/CVE-2020-9781

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-9781/
Summaries are generated and may contain mistakes; the official description above is the record.