Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 8.9.0 to 10.6.19, from 11.0.0 to 11.3.19, from 11.4.0 to 11.4.10, from 12.0.0-alpha1 to 12.0.0-beta2.
CVE-2026-108515
UNRATEDCVSS · not yet scoredTrending — 6 sources updated this week
Also known asEUVD-2026-113555 (ENISA EUVD) · GHSA-297f-h4fx-vc6c (GitHub Security Advisories)Source: ENISA EUVD
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EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS v2: —Exploit: None knownExposed services: Not assessed
A fix is available — apply it.
- CVSS v3
- —
- EchelonGraph score
- Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
- EG Score
- —
- EG Risk
- —
- EPSS PROB
- 0.2%
- EPSS %ILE
- 9th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
- EG Severity
- Not assessed: no CVSS publishedA missing CVSS is not a severity of zero.
- EG Likelihood
- 0.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-30). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- No SSVC decision: EchelonGraph has not assessed this CVECISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the BOD 26-04 block below.
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 30, 2026
Last Modified
October 30, 2026
References (1)
- mlhess@drupalhttps://www.drupal.org/sa-core-2026-015
Vendor Advisories for CVE-2026-108515(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
Packagist(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| drupal/core | 10.0.0 ... 9.5.9 (352 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 10× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
- 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.2% · 9th percentile
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
- 2026-10-30 19:49 UTCEG score recompute
- 2026-10-30 19:49 UTCGHSA enrichmentGHSA-297f-h4fx-vc6c
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
- 2026-10-30 04:26 UTCNVD update
- 2026-10-30 04:02 UTCENISA EUVD ID recordedEUVD-2026-113555 · Source: ENISA EUVD
- 2026-10-30 03:21 UTCEG score recompute
- 2026-10-30 03:20 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Same product
10 shownPackagist:drupal/core
- CVE-2026-9082EG 9.8 KEVEPSS p100CRITICAL
- CVE-2024-55638EG 9.8CRITICAL
- CVE-2024-55637EG 9.8CRITICAL
- CVE-2024-55636EG 9.8CRITICAL
- CVE-2020-13675EG 9.8CRITICAL
- CVE-2020-13665EG 9.8CRITICAL
- CVE-2019-6342EG 9.8CRITICAL
- CVE-2011-2715EG 9.8CRITICAL
- CVE-2019-11831EG 9.8EPSS p93CRITICAL
- CVE-2019-6339EG 9.8EPSS p98CRITICAL
Frequently asked(4)
What is CVE-2026-108515?
CVE-2026-108515 is a vulnerability whose severity is not yet rated; its CVE record was published on October 30, 2026. Improper Neutralization of Input During Web Page Generation ("Cross-site Scripting") vulnerability in Drupal Drupal core allows Cross-Site Scripting (XSS). This issue affects Drupal core versions: from 8.9.0 to 10.6.19, from 11.0.0 to 11.3.19, from 11.4.0 to 11.4.10, from 12.0.0-alpha1 to…
When was CVE-2026-108515 made public?
CVE-2026-108515 was made public on October 14, 2026: that is the date its CVE record's CNA, Drupal.org, gives for when the vulnerability was made public. The CVE record itself was published on October 30, 2026. EchelonGraph's copy of the record carries a last-modified date of October 30, 2026; the record at its source may have been updated since.
Is CVE-2026-108515 actively exploited?
CVE-2026-108515 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
How do I remediate CVE-2026-108515?
A fix for CVE-2026-108515 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-108515 are linked in the Vendor Advisories panel on this page.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-108515
Is Your Infrastructure Affected by CVE-2026-108515?
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