CVE-2020-27659: synology safe_access Cross-site Scripting
CVSS: 8.4v3.1HighModified
Published 30-11-2020Last modified 17-09-2024
Vulnerability summary
CVE-2020-27659 is a high (CVSS 8.4) Cross-site Scripting vulnerability in synology safe_access. EPSS estimates a 5.20% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
8.4/10
010
High · v3.1 (CVE.org)EPSS score
5.20%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference
Timeline
- 30-11-2020PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
Multiple cross-site scripting (XSS) vulnerabilities in Synology SafeAccess before 1.2.3-0234 allow remote attackers to inject arbitrary web script or HTML via the (1) domain or (2) profile parameter.
CVSS metrics
3 scores · 2 sources · 2 versionsHigh 8.4Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:HSources2 sources · 4.8–8.4
- NVDNIST4.8MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NDiffers
Low 3.5Preferred score · NVD (NIST)
AV:N/AC:M/Au:S/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
5.20%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.20% on 19-09-2026
19-09-202619-10-2026
EPSS score5.20%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundSynology Sa 20 25
Maturity: poc
Exploit Reference (talosintelligence.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Synology2 products
- safe_access≥ unspecified, < 1.2.3-0234
- safeaccess< 1.2.3-0234
1 vendor · 2 products
References
3 links- www.talosintelligence.com/vulnerability_reports/TALOS-2020-1087X Refsource MISCExploitThird Party Advisory