# CVE-2020-36923: Sony BRAVIA Digital Signage 1.7.8 Client-Side Protection Bypass via IDOR

> Attackers can bypass client-side authorization controls to access hidden system resources in Sony BRAVIA Digital Signage.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Jan 2026
- **Updated:** 6 Jan 2026
- **Also known as:** GHSA-hg2f-jm3j-qjq8

## What is CVE-2020-36923?

CVE-2020-36923 is a medium-severity authentication bypass vulnerability in Sony BRAVIA Digital Signage, published on 6 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Sony BRAVIA Digital Signage 1.7.8 contains an insecure direct object reference vulnerability that allows attackers to bypass authorization controls. Attackers can access hidden system resources like '/#/content-creation' by manipulating client-side access restrictions.

Weakness: CWE-639 (Authorization Bypass Through User-Controlled Key)

## Which versions are affected by CVE-2020-36923?

It affects 1 product.


Products: Sony Bravia Signage.

## How do I fix CVE-2020-36923?

No fix has been published for CVE-2020-36923 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-36923 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-36923 exists.

## Other vulnerabilities in Sony BRAVIA Digital Signage

- [CVE-2020-36922](https://insights.sbomify.com/CVE-2020-36922/): Sony BRAVIA Digital Signage 1.7.8 Unauthenticated System API Information Disclosure (medium 6.9)
- [CVE-2020-36924](https://insights.sbomify.com/CVE-2020-36924/): Sony BRAVIA Digital Signage 1.7.8 Unauthenticated Remote File Inclusion (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36923 and fix it if it is affected.

What it is: CVE-2020-36923 is a medium-severity authentication bypass vulnerability in Sony BRAVIA Digital Signage, published on 6 Jan 2026. 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-2020-36923 exists.

Affected product: Sony BRAVIA Digital Signage. 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-2020-36923/ (Markdown: https://insights.sbomify.com/CVE-2020-36923/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36923
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36923
- OSV: https://osv.dev/vulnerability/CVE-2020-36923

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From sbomify Insights: https://insights.sbomify.com/CVE-2020-36923/
Summaries are generated and may contain mistakes; the official description above is the record.