CVE-2018-20298 json
S3 Browser before 8.1.5 contains an XML external entity (XXE) vulnerability, allowing remote attackers to read arbitrary files and obtain N…
published 2018-12-19 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12861
- cvss
- 6.5
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 72%
- public exploits
- 0
- none known
Summary
S3 Browser before 8.1.5 contains an XML external entity (XXE) vulnerability, allowing remote attackers to read arbitrary files and obtain NTLMv2 hash values by tricking a user into connecting to a malicious server via the S3 protocol.
Patch / fix
- s3browser s3_browser 8.1.5
Exploit prediction
1.40% chance of exploitation in the next 30 days, higher than 72% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
s3browser.com
/news.aspx
release-notes, vendor-advisory
-
ptsecurity.com
/ww-en/analytics/threatscape/pt-2018-34/
third-party-advisory
Sources
- CVE List CVE-2018-20298
- NVD CVE-2018-20298
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