# CVE-2020-28874: Business logic in n/a

> Remote attackers can reset user passwords due to flawed business logic in the password reset mechanism, leading to account takeover.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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:** No
- **Published:** 21 Jan 2021
- **Updated:** 9 Jul 2026
- **Also known as:** GHSA-g5ww-gvff-fp7p

## What is CVE-2020-28874?

CVE-2020-28874 is a high-severity vulnerability in n/a, published on 21 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

reset-password.php in ProjectSend before r1295 allows remote attackers to reset a password because of incorrect business logic. Errors are not properly considered (an invalid token parameter).

Weakness: CWE-404 (Improper Resource Shutdown or Release), CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2020-28874?

It affects 1 product.


Products: Projectsend Projectsend.

## How do I fix CVE-2020-28874?

No fix has been published for CVE-2020-28874 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-28874 being exploited?

There is no known exploitation of CVE-2020-28874 in the wild and no public exploit code.

Public exploit code:

- CVE-2020-28874 (github_poc): https://github.com/varandinawer/CVE-2020-28874

## Other vulnerabilities in n/a

- [CVE-2024-11680](https://insights.sbomify.com/CVE-2024-11680/): ProjectSend Improper Authentication (critical 9.8, exploited in the wild)
- [CVE-2021-40887](https://insights.sbomify.com/CVE-2021-40887/): Path traversal in n/a (critical 9.8)
- [CVE-2016-10731](https://insights.sbomify.com/CVE-2016-10731/): SQL injection in n/a (critical 9.8)
- [CVE-2016-10732](https://insights.sbomify.com/CVE-2016-10732/): Auth bypass in n/a (critical 9.8)
- [CVE-2016-10733](https://insights.sbomify.com/CVE-2016-10733/): Path traversal in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-28874 and fix it if it is affected.

What it is: CVE-2020-28874 is a high-severity vulnerability in n/a, published on 21 Jan 2021. 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-2020-28874 in the wild and no public exploit code.

Affected product: n/a. 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-2020-28874/ (Markdown: https://insights.sbomify.com/CVE-2020-28874/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-28874
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-28874
- OSV: https://osv.dev/vulnerability/CVE-2020-28874

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-28874/
Summaries are generated and may contain mistakes; the official description above is the record.