🛡️ CVE-2026-21449 — bagisto

🟠 CVSS 8.8 — High ⚠️ Exploit Public CWE-1336 NVD
8.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Bagisto is vulnerable to SSTI via name parameters provided by non-admin low-privilege users

Summary

SSTI is possible via first name and last name parameters provided by lowest-privileged users.

Details

1. Go to http://127.0.0.1:8000/ and login or signup

2. Go to http://127.0.0.1:8000/customer/account/profile

3. Now edit the first name and last name to {{7*7}}

4. Notice it appears as 49

POC

  • Video attached with the report: https://github.com/user-attachments/assets/f93932b5-2a57-4f34-897e-4151a5168912

Impact

This can lead to RCE, command injection.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2026-21449 is recorded against 2 packages.

  • bagisto (fixed in 2.3.10)
  • bagisto/bagisto (fixed in 2.3.10)

Timeline and source

Published on 2 January 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

github.com

Details

Severity HIGH
CVSS Score 8.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE CWE-1336
Public Exploit ⚠️ Yes
Source NVD
Published 2026-01-02
Updated 2026-08-12
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
bagisto — 2.3.10
bagisto/bagisto — 2.3.10

Similar Threats

Exploit Protection

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CVE-2026-21449 carries CVSS 8.8 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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