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CVE-2017-12291

19
FAUCET Score

CVE-2017-12291 describes multiple cross-site scripting (XSS) and URL redirection vulnerabilities in the web interface of Cisco Registered Envelope Service, a cloud-based email encryption product. These issues stem from insufficient input validation, allowing an unauthenticated, remote attacker to execute arbitrary script code or redirect users to malicious websites via crafted links or HTTP requests. Rated Medium severity (CVSS 6.1), successful exploitation could lead to information disclosure or phishing attacks. There is no evidence of active exploitation, public exploit code, or significant community discussion, and it is not listed on the CISA KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
5.3.0CPE matchmatch criteria
cpe:2.3:a:cisco:email_encryption:5.3.0:*:*:*:*:*:*:*
5.3.0-038CPE matchmatch criteria
cpe:2.3:a:cisco:email_encryption:5.3.0-038:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.87%
Probability of exploitation in next 30 days
EPSS Percentile
55.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0087 is in the 65th percentile among its peer group of 26,209 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20171115-res
Vendor Advisory
securityfocus.com / bid/101863
Third Party AdvisoryVDB Entry