PatchSiren cyber security CVE debrief
CVE-2026-8773 linlinjava CVE debrief
A low-severity argument injection vulnerability exists in the linlinjava litemall project, affecting versions up to 1.8.0. The vulnerability resides in the `backup/load` function within `DbUtil.java`, where improper handling of the `db/password` parameter allows remote attackers to inject arguments. The CVSS 4.0 score of 2.0 reflects limited impact due to high privileges required for exploitation. The vendor was contacted prior to disclosure but did not respond. Public exploit disclosure increases urgency for remediation despite low severity.
- Vendor
- linlinjava
- Product
- litemall
- CVSS
- LOW 2
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-18
- Original CVE updated
- 2026-05-18
- Advisory published
- 2026-05-18
- Advisory updated
- 2026-05-18
Who should care
Organizations running linlinjava litemall ≤1.8.0 with exposed administrative interfaces; security teams monitoring open-source Java e-commerce platforms; database administrators responsible for backup/restore operations
Technical summary
The vulnerability exists in the `backup/load` method of `DbUtil.java` in the litemall-db component. The `db/password` parameter is passed to shell commands without adequate sanitization, enabling argument injection. An attacker with high privileges can manipulate this parameter to inject additional command arguments. The attack vector is network-based with low attack complexity, though high privileges are required. Confidentiality, integrity, and availability impacts are rated low. The exploit has been publicly disclosed, though no known ransomware campaign use has been identified.
Defensive priority
medium
Recommended defensive actions
- Review and sanitize all user-supplied input passed to database backup/restore utilities, particularly the db/password parameter in DbUtil.java
- Implement input validation and parameterized command construction to prevent argument injection in shell command execution
- Consider removing or restricting remote access to database backup functionality until patch available
- Monitor for unauthorized database backup operations or anomalous process executions
- Subscribe to vendor security advisories for linlinjava/litemall repository for official patch release
Evidence notes
Vulnerability identified in litemall-db/src/main/java/org/linlinjava/litemall/db/util/DbUtil.java backup/load function. CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-88 (Improper Neutralization of Argument Delimiters in a Command) classified. CVSS 4.0 vector: AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P. Exploit publicly disclosed via GitHub Gist. Vendor non-responsive to early disclosure.
Official resources
public