How severe is CVE-2021-45888?

CVE-2021-45888 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-45888 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-45888?

CVE-2021-45888 primarily affects Ponton X/p Messenger. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-45888?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-45888 published?

CVE-2021-45888 was published on 2022-03-13 and last updated on 2026-06-17.

CVE-2021-45888

CVE-2021-45888 is a medium-severity vulnerability in Ponton X/p Messenger with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Ponton X/p Messenger
Published: 2022-03-13
Last modified: 2026-06-17

Description

An issue was discovered in PONTON X/P Messenger before 3.11.2. The navigation tree that is shown on the left side of every page of the web application is vulnerable to XSS: it allows injection of JavaScript into its nodes. Creating such nodes is only possible for users who have the role Configuration Administrator or Administrator.

Frequently asked questions

What is CVE-2021-45888?: An issue was discovered in PONTON X/P Messenger before 3.11.2. The navigation tree that is shown on the left side of every page of the web application is vulnerable to XSS: it allows injection of JavaScript into its nodes. Creating such nodes is only possible for users who have the role Configuration Administrator or Administrator.
How severe is CVE-2021-45888?: CVE-2021-45888 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-45888 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-45888?: CVE-2021-45888 primarily affects Ponton X/p Messenger. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-45888?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-45888 published?: CVE-2021-45888 was published on 2022-03-13 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:ponton:x\/p_messenger:3.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ponton:x\/p_messenger:3.10.0:*:*:*:*:*:*:*

More vulnerabilities in Ponton X/p Messenger

CVE-2021-45887 — Critical (CVSS 9.8): An issue was discovered in PONTON X/P Messenger before 3.11.2. Due to path traversal in private/SchemaSetUpload.do for…
CVE-2021-45886 — High (CVSS 8.8): An issue was discovered in PONTON X/P Messenger before 3.11.2. Anti-CSRF tokens are globally valid, making the web…
CVE-2021-45889 — Medium (CVSS 5.4): An issue was discovered in PONTON X/P Messenger before 3.11.2. Several functions are vulnerable to reflected XSS, as…

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