CVE-2021-27817
ShopXO RCE Vulnerability
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
CVE-2021-27817- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List No score
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
CVE-2021-27817- Updated
- 2026-11-02
EUVDEUVD-2022-5875 No score
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
EUVD-2022-5875- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-xx77-w6p5-xvmj
ShopXO RCE Vulnerability
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
GHSA-xx77-w6p5-xvmj- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
OSV
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
CVE-2021-27817- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-xx77-w6p5-xvmj
ShopXO RCE Vulnerability
A remote command execution vulnerability in shopxo 1.9.3 allows an attacker to upload malicious code generated by phar where the suffix is JPG, which is uploaded after modifying the phar suffix.
- Record
GHSA-xx77-w6p5-xvmj- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
shopxo/shopxoPackagist |
through 1.9.3 | None known |
shopxo/shopxoPackagist |
through 1.9.3, plus listed versions v1.1.0v1.2.0v1.3.0v1.4.0v1.5.0 Show 8 moreShow lessv1.6.0v1.7.0v1.8.0v1.8.1v1.9.0v1.9.1v1.9.2v1.9.3 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-27817 is a critical vulnerability (CVSS 9.8) in Shopxo, published March 15, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.23%, the 88th percentile. No source names a fixed version.