How severe is CVE-2022-27158?

CVE-2022-27158 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-27158 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-27158?

CVE-2022-27158 affects Php Pearweb. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-27158?

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

When was CVE-2022-27158 published?

CVE-2022-27158 was published on 2022-04-15 and last updated on 2026-06-17.

CVE-2022-27158

Q: What is CVE-2022-27158?

pearweb < 1.32 suffers from Deserialization of Untrusted Data.

CVE-2022-27158 is a critical-severity vulnerability in Php Pearweb with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Php Pearweb
Published: 2022-04-15
Last modified: 2026-06-17

Description

pearweb < 1.32 suffers from Deserialization of Untrusted Data.

Frequently asked questions

What is CVE-2022-27158?: pearweb < 1.32 suffers from Deserialization of Untrusted Data.
How severe is CVE-2022-27158?: CVE-2022-27158 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-27158 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-27158?: CVE-2022-27158 affects Php Pearweb. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-27158?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-27158 published?: CVE-2022-27158 was published on 2022-04-15 and last updated on 2026-06-17.

References

https://github.com/pear/pearweb/commit/6447c174a6b4bd76d28ecca8543cbd24bf394f99

Affected products (1)

cpe:2.3:a:php:pearweb:*:*:*:*:*:*:*:*

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CVE-2022-27157 — Critical (CVSS 9.8): pearweb < 1.32 is suffers from a Weak Password Recovery Mechanism via include/users/passwordmanage.php.

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