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CVE-2021-42639

24
FAUCET Score

CVE-2021-42639 describes multiple reflected cross-site scripting (XSS) vulnerabilities in PrinterLogic Web Stack versions 19.1.1.13 SP9 and below, where attacker-controlled input is reflected without sanitization. This medium-severity vulnerability (CVSS 6.1) has a low attack complexity and requires user interaction, potentially leading to limited impact on confidentiality and integrity. While no public exploit code or active exploitation has been observed, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 19.1.1.13CPE matchmatch criteria
cpe:2.3:a:printerlogic:web_stack:*:*:*:*:*:*:*:*
19.1.1.13CPE matchmatch criteria
cpe:2.3:a:printerlogic:web_stack:19.1.1.13:-:*:*:*:*:*:*
19.1.1.13CPE matchmatch criteria
cpe:2.3:a:printerlogic:web_stack:19.1.1.13:sp2:*:*:*:*:*:*
19.1.1.13CPE matchmatch criteria
cpe:2.3:a:printerlogic:web_stack:19.1.1.13:sp3-3:*:*:*:*:*:*
19.1.1.13CPE matchmatch criteria
cpe:2.3:a:printerlogic:web_stack:19.1.1.13:sp9:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/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
3.1

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 76th percentile among its peer group of 26,234 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

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

Remediation

Remediation records are not available for this CVE.

References

portswigger.net / daily-swig/printerlogic-vendor-addresses-triple-rce-threat-against-all-connected-endpoints
Not Applicable
securityaffairs.co / wordpress/127194/security/printerlogic-printer-management-suite-flaws.html
Third Party Advisory
thecyberthrone.in / 2022/01/26/printerlogic-%F0%9F%96%A8-fixes-critical-vulnerabilities-in-its-suite
Third Party Advisory
printerlogic.com / security-bulletin
Vendor Advisory
securityweek.com / printerlogic-patches-code-execution-flaws-printer-management-suite
Third Party Advisory
yahooinc.com / paranoids/paranoids-vulnerability-research-printerlogic-issues-security-alert
ExploitThird Party Advisory