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CVE Record

CVE-2020-26104: In cPanel before 88.0.3, an insecure SRS secret is used on a templated VM (SEC-552).

In cPanel before 88.0.3, an insecure SRS secret is used on a templated VM (SEC-552).

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE affects cPanel installations before 88.0.3 where a templated VM could use an insecure SRS secret. The public record does not provide CVSS, CWE, exploit details, or business impact specifics, so urgency depends on whether affected cPanel versions remain in service.

Executive priority

Prioritize as a targeted hygiene issue for hosting environments rather than an emergency unless affected cPanel templates are still deployed. The lack of severity and exploit evidence limits risk certainty, but secret reuse on server templates can create systemic exposure across many instances.

Technical view

CVE-2020-26104 is recorded as cPanel SEC-552: before version 88.0.3, an insecure Sender Rewriting Scheme secret is used on a templated VM. Available sources do not explain exploit mechanics, impact scope, or prerequisites beyond the version boundary.

Likely exposure

Exposure is most likely on cPanel systems running versions earlier than 88.0.3, especially instances created from templated virtual machines. The provided sources do not identify affected operating systems, hosting configurations, or downstream products.

Exploitation context

The source bundle does not cite active exploitation, public exploit availability, or KEV listing. Treat exploitation status as unconfirmed rather than active. The limited description suggests configuration or secret reuse risk tied to templated VM deployments.

Researcher notes

Public detail is sparse. The CVE record names cPanel before 88.0.3 and SEC-552 but provides no CVSS, CWE, affected CPEs, exploit chain, or explicit remediation beyond the fixed version implied by the changelog reference.

Mitigation direction

  • Inventory cPanel servers and identify versions earlier than 88.0.3.
  • Upgrade affected cPanel installations to 88.0.3 or later per vendor guidance.
  • Review vendor changelog notes for SEC-552 before scheduling remediation.
  • Check whether templated VM images were used for cPanel deployments.
  • If still exposed, consult cPanel support for secret rotation guidance.

Validation and detection

  • Confirm installed cPanel version on each managed server.
  • Verify remediated systems report version 88.0.3 or later.
  • Review deployment records for cloned or templated VM origins.
  • Check mail-related configuration for unexpected shared SRS secrets, if vendor tooling supports it.
  • Document systems where version or template provenance cannot be confirmed.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

description · low confidence lookup

Credential and access behavior lookup

The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2020-26104 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.