CVE-2018-18315
CVE-2018-18315 is a high-severity vulnerability in Mossle Lemon with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-434.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 1% (64th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-434
- Affected product: Mossle Lemon
- Published:
- Last modified:
Description
com/mossle/cdn/CdnController.java in lemon 1.9.0 allows attackers to upload arbitrary files because the copyMultipartFileToFile method in CdnUtils only checks for a ../ substring, and does not validate the file type and spaceName parameter.
Frequently asked questions
- What is CVE-2018-18315?
- com/mossle/cdn/CdnController.java in lemon 1.9.0 allows attackers to upload arbitrary files because the copyMultipartFileToFile method in CdnUtils only checks for a ../ substring, and does not validate the file type and spaceName parameter.
- How severe is CVE-2018-18315?
- CVE-2018-18315 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2018-18315 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2018-18315?
- CVE-2018-18315 affects Mossle Lemon. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2018-18315?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2018-18315 published?
- CVE-2018-18315 was published on 2018-10-15 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mossle:lemon:1.9.0:*:*:*:*:*:*:*
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