CVE-2018-13299

MEDIUMNVD 4.36.5▲

4.3

Relative path traversal vulnerability in Attachment Uploader in Synology Calendar before 2.2.2-0532 allows remote authenticated users to upload arbitrary files via the filename parameter.

CVSS v3: 4.3
EG Score: 6.5(medium)
EPSS: 36.6%
KEV: Not listed

Published

April 1, 2019

Last Modified

November 21, 2024

References (2)

security@synologyhttps://www.synology.com/security/advisory/Synology_SA_18_54
af854a3a-2127-422b-91ae-364da2661108https://www.synology.com/security/advisory/Synology_SA_18_54

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 21:13 UTCEG score recompute
2026-05-27 21:13 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-13299?

CVE-2018-13299 is a medium vulnerability published on April 1, 2019. Relative path traversal vulnerability in Attachment Uploader in Synology Calendar before 2.2.2-0532 allows remote authenticated users to upload arbitrary files via the filename parameter.

When was CVE-2018-13299 disclosed?

CVE-2018-13299 was first published in the National Vulnerability Database on April 1, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-13299 actively exploited?

CVE-2018-13299 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-13299?

CVE-2018-13299 has a CVSS v3 base score of 4.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.5.

How do I remediate CVE-2018-13299?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-13299, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2018-13299

📅 Published

🔄 Last Modified

🔗 References (2)