CVE-2021-21802: advantech r-seenet Cross-site Scripting
CVSS: 9.6v3.0CriticalModified
Published 16-07-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-21802 is a critical (CVSS 9.6) Cross-site Scripting vulnerability in advantech r-seenet. EPSS estimates a 9.90% chance of exploitation in the next 30 days, higher than 95.5% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
9.6/10
010
Critical · v3.0 (CVE.org)EPSS score
9.90%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Timeline
- 16-07-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
This vulnerability is present in device_graph_page.php script, which is a part of the Advantech R-SeeNet web applications. A specially crafted URL by an attacker and visited by a victim can lead to arbitrary JavaScript code execution.
CVSS metrics
4 scores · 2 sources · 3 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesSingle source
Critical 9.6Preferred score · CVE.org (CNA)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:HSourcesAll 2 agree
- NVDNIST9.6CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
9.90%
Chance of exploitation in the next 30 days
Percentile
96%
Versus all other CVEs
30-day change
0.00 pp
From 9.90% on 21-09-2026
21-09-202621-10-2026
EPSS score9.90%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (talosintelligence.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Advantech1 product
- r-seenet2.4.12
1 vendor · 1 product
References
1 links- talosintelligence.com/vulnerability_reports/TALOS-2021-1272X Refsource MISCExploitThird Party Advisory