How severe is CVE-2026-48243?

CVE-2026-48243 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-48243 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-48243?

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

Does CVE-2026-48243 have an EU (EUVD) identifier?

Yes. CVE-2026-48243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31325.

When was CVE-2026-48243 published?

CVE-2026-48243 was published on 2026-05-21 and last updated on 2026-06-17.

CVE-2026-48243

CVE-2026-48243 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-798.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v4: 6.9
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-31325
Weakness: CWE-798
Published: 2026-05-21
Last modified: 2026-06-17

Description

Open ISES Tickets before 3.44.2 embeds a hardcoded WhitePages reverse-phone API key in wp1.php that is committed to the public source repository. Any actor with read access to the source tree can extract the key and use it to make third-party API calls billed to or rate-limited against the original owner's WhitePages account.

Frequently asked questions

What is CVE-2026-48243?: Open ISES Tickets before 3.44.2 embeds a hardcoded WhitePages reverse-phone API key in wp1.php that is committed to the public source repository. Any actor with read access to the source tree can extract the key and use it to make third-party API calls billed to or rate-limited against the original owner's WhitePages account.
How severe is CVE-2026-48243?: CVE-2026-48243 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-48243 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-48243?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-48243 have an EU (EUVD) identifier?: Yes. CVE-2026-48243 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31325.
When was CVE-2026-48243 published?: CVE-2026-48243 was published on 2026-05-21 and last updated on 2026-06-17.

References

Other CWE-798 (Use of Hard-coded Credentials) vulnerabilities

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CVE-2026-22769 — Critical (CVSS 10.0): Dell RecoverPoint for Virtual Machines, versions prior to 6.0.3.1 HF1, contain a hardcoded credential vulnerability.…
CVE-2025-42890 — Critical (CVSS 10.0): SQL Anywhere Monitor (Non-GUI) baked credentials into the code,exposing the resources or functionality to unintended…
CVE-2025-7503 — Critical (CVSS 10.0): An OEM IP camera manufactured by Shenzhen Liandian Communication Technology LTD exposes a Telnet service (port 23) with…
CVE-2025-20309 — Critical (CVSS 10.0): A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session…

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