How severe is CVE-2018-11639?

CVE-2018-11639 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11639 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11639?

CVE-2018-11639 primarily affects Dialogic Powermedia Xms. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-11639?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-11639 published?

CVE-2018-11639 was published on 2018-07-03 and last updated on 2026-06-17.

CVE-2018-11639

CVE-2018-11639 is a high-severity vulnerability in Dialogic Powermedia Xms with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-522
Affected product: Dialogic Powermedia Xms
Published: 2018-07-03
Last modified: 2026-06-17

Description

Plaintext Storage of Passwords within Cookies in /var/www/xms/application/controllers/verifyLogin.php in the administrative console in Dialogic PowerMedia XMS before 3.5 SU2 allows remote attackers to access a user's password in cleartext.

Frequently asked questions

What is CVE-2018-11639?: Plaintext Storage of Passwords within Cookies in /var/www/xms/application/controllers/verifyLogin.php in the administrative console in Dialogic PowerMedia XMS before 3.5 SU2 allows remote attackers to access a user's password in cleartext.
How severe is CVE-2018-11639?: CVE-2018-11639 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11639 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11639?: CVE-2018-11639 primarily affects Dialogic Powermedia Xms. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-11639?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-11639 published?: CVE-2018-11639 was published on 2018-07-03 and last updated on 2026-06-17.

References

https://d3adend.org/blog/?p=1398

Affected products (2)

cpe:2.3:a:dialogic:powermedia_xms:*:*:*:*:*:*:*:*
cpe:2.3:a:dialogic:powermedia_xms:3.5:su1:*:*:*:*:*:*

More vulnerabilities in Dialogic Powermedia Xms

CVE-2018-11641 — Critical (CVSS 9.8): Use of Hard-coded Credentials in /var/www/xms/application/controllers/gatherLogs.php in the administrative console in…
CVE-2018-11635 — Critical (CVSS 9.8): Use of a Hard-coded Cryptographic Key used to protect cookie session data in /var/www/xms/application/config/config.php…
CVE-2018-11640 — Critical (CVSS 9.1): XML External Entity (XXE) vulnerability in the web service in Dialogic PowerMedia XMS before 3.5 SU2 allows remote…
CVE-2018-11643 — High (CVSS 8.8): SQL injection vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5 allows remote…
CVE-2018-11636 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5…
CVE-2018-11642 — High (CVSS 7.8): Incorrect Permission Assignment on the /var/www/xms/cleanzip.sh shell script run periodically in Dialogic PowerMedia…

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