CVE-2025-6731: yzcheng90 X-SpringBoot · Path Traversal
Affects yzcheng90 X-SpringBootSource CVE Database V5
Not known to be exploited · CVSS 5.3 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 35% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 26 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
GitHubyzcheng90/X-SpringBootpkg:github/yzcheng90/X-SpringBootOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
First, restrict network access to the vulnerable upload endpoint by applying firewall rules or web application firewall (WAF) policies to limit access to trusted IPs only. Second, implement strict input validation and sanitization at the application or proxy level to block path traversal patterns such as '../' sequences in file upload parameters. Third, monitor logs for suspicious activity targeting the /sys/oss/upload/apk endpoint, including unusual file path requests or repeated attempts to access parent directories. Fourth, consider disabling or temporarily removing the APK upload functionality if not essential. Fifth, conduct a thorough audit of file permissions on the server to ensure the application runs with the least privilege necessary, limiting the impact of any successful traversal. Finally, organizations should track vendor communications for patches or updates and plan for timely application once available. Employing runtime application self-protection (RASP) tools or endpoint detection and response (EDR) solutions may also help detect exploitation attempts in real time.
Description
A vulnerability was found in yzcheng90 X-SpringBoot up to 5.0 and classified as critical. Affected by this issue is the function uploadApk of the file /sys/oss/upload/apk of the component APK File Handler. The manipulation of the argument File leads to path traversal. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.