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CVE-2026-1902

The Hammas Calendar plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'apix' parameter in the 'hp-calendar-manage-redirect' shortcode in all versions up to, and including, 1.5.11 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e956085c9a2ade1b96b06603b5f157152841a034f8c829c73034268791f6c8ef
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","product":"Hammas Calendar","vendor":"innovaatik","versions":[{"lessThanOrEqual":"1.5.11","status":"affected","version":"0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":6.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"url":"https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/hp-calendar.php#L37"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/references/1
{"url":"https://plugins.trac.wordpress.org/browser/hammas-calendar/tags/1.5.11/src/HpPlugin.php#L54"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/references/2
{"url":"https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3474583%40hammas-calendar&new=3474583%40hammas-calendar&sfp_email=&sfph_mail="}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/references/3
{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/03956922-988a-4cb6-bf20-51878a5b1555?source=cve"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e2231cc10eb749c2ad4ff4125769a31c5f2f388133638720c23cc9df84d8d76 · sha256:820c2d20ad58d464… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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